Excellent points, and I appreciate the more lengthy discussion at
the end.
At this point my "standard play" is nonexistant. I've been a table
player my whole gambling life, and have very rarely played VP in the
past. I stick to blackjack with solid basic strategy or the good
bets in craps, and have a great time. However, in the past few
months I've experienced some big changes in my gambling "habbits".
First, due to a whole number of reasons, I'm in Vegas quite a bit
more - at least once, frequently 2-3 times per month; second, a
rough review of my trips over the last year made me realize that
over time my gambling losses are generally a much smaller number
than money laid out for food, rooms, and entertainment while in town
(significantly smaller number). Since the biggest reason I go to
Vegas is the rush of the casinos, it's time to adjust my playing
strategy a bit. I'd like to try splitting my time between VP and
the tables, with the hopes of playing high-percentage VP, having a
good time and getting good offers.
The reason I'm looking to keep "playing time" down is two-fold.
First, this will be my first real stay at any of the Vegas Harrah's
properties, and while I'm sure I'd make diamond over the course of
the year, I'd much rather make it an the onset of spending a week
out there with a big group of friends. However, having that group
around means that the amount of focused time I can spend at VP at a
single casino is somewhat limited. Ie, I'd have a hard time putting
in the time to get a $18K coin-in on quarters. Since I'm a VP
beginner, I'd be lucky to get through the 14,400 required hands in a
day. Also, due to my inexperience, I suspect my endurance at the
VPs will need some work, and I wont be able to keep up a decent rate
of play with solid strategy for much more than 5-6 hours. Of
course, the easiest solution would be to sit down at the $5 machines
with a very large bankroll, play my 720 hands, and be done. In a
perfect world I'd do that, hit the royal, and be a very happy
camper. However, since I'm not going to do that, my next best bet
is to try and answer the question: Given $18K coin-in over a 5-6
hour period, what's the best game/strategy/etc. to play to minimize
my risk of ruin? In the longer run, I'd like to really spend some
time getting to know the games, get a feel for different plays,
etc., but this particular trip presents some interesting challenges.
Anyways, sorry for the novel :). Thanks again for the excellent
reply.
--- In vpFREE@yahoogroups.com, "Harry Porter" <harry.porter@...>
wrote:
I'm hung up once again in what has been a near interminable system
migration. So, let me come back around and address these questions
more thoroughly.
I'll give you some practical advice right off the bat ... then,
assuming that you have some analytic interest that may go beyond
what
you really need to know to cope with multiplay in the casino, I'll
give you a cursory overview of the variables involved -- which are
a
little more extensive than typically discussed.
-------------------------------
I don't know what your standard play consists of, but there's a
hint
in your reference to "minimizing playing time" that your suggested
plays above are pushing the envelope relative to your mainstays.
After all, if you're really concerned about minimizing volatility,
why
not go with $1 single line as your "front line" considered play?
You're only talking about 5 hours max in the casino to kill off
that
$18K. If you tend not to be around for that long on a typical
visit,
what the heck are you sweating DIAD in a day for? (I don't mean
to be
cynical ... just making sure that we're both working from a
decently
functional perspective.)
------
Setting those comments aside, but still addressing the possibility
that you're looking to venture into new play turf here, I'll
suggest
that it's generally inadvisable for anyone to stray from their
typical
play choices when tackling a promotion, unless there are very
clear,
strong advantages.
Reducing the variance of the day's play is a poor goal. You have
every reason to be as comfortable hitting this targeted play in the
same manner that you do all the rest of your play.
------
Finally, irregardless of what your standard play regimen, I'll
suggest
that the best way for anyone to get a handle on the comfort of a
play
vs. another is to simply sit down and play for a couple of hours.
Ok, here's a discussion of what's at play when you try to come at
this
question through an exploration of variance. I suggest skipping it
though ... it's going to come across as a bunch of gobbledy-gook
unless you've had the type of motivation that would lead you to
parse
Jazbo's article word by word:
------------------------------
Trying to digest variance values and apply them is a neat academic
exercise, but it's pretty unreliable when it comes to vp --
particularly if you're concerned about win/loss variability over a
limited number of hours.
The variance calculation assumes phenomena are normally
distributed.
Because of the inherent skewness in vp paytables, outcomes don't
adhere to a bell shaped curve (pretty obvious).
While it's true that over the "long term" (that's a nebulous term
for
which I'd like to substitute the expression "over the 'George'" ;),
results do approximate a normal distribution -- and therefore
there's
a reasonably decent rough correlation between variance and bankroll
requirement -- variance is a fairly weak descriptor for the
behavior
of vp results over the course of less then 500,000 hands. Forget
about it as a reliable comparison of what to expect over the
course of
a few weeks of play, much less a single day.
------
Things get even dicier when you start comparing multiline plays
with
single line, especially if there's a disparity in total bet per
play.
If you're looking at a simplistic example of single line $1 vs. 4-
play
$.25, it's a no-brainer to say the 4-play is going to expose you to
less loss risk for any given amount of coin-in. Makes sense --
instead of your entire bet riding on a single draw to a dealt hand,
you get to spread it over 4 separate independent draws.
But translating the relative variances of a single play and
multiline
one into a statement of absolute loss risks is fraught with
hazard --
even more so than comparing two single line plays of different
games.
When comparing single line plays (e.g. JB w/ PE), you're at least
doing an "apple to apple" comparison when it comes to the variance
concept. But multiline variance overlays the standard single line
calculation with a separate one that assesses the extent to which
having multiple draws depend upon an identical dealt hand skew the
outcome distribution. These are two very different variance
considerations that don't neatly sum together in a way that's
analogous to the single line variance calculation.
The point is, in the short term, multiline volatility will behave
differently than single line. You're taking a pot shot when you
use a
single point descriptor such as variance to draw a comparison.
I challenge anyone to firmly arrive at the number of lines of $.25
multiline that has comparable loss risk to single line $1 play,
under
a given play scenario, solely based upon the respective variances
(or
respond to your questions on that basis, FWIW).
------
You introduce yet another wrinkle that makes that approach anything
but cut and dry. Comparing variance of two plays is somewhat
feasible
when you are looking at the same number of base deals (plays). But
you're interested in the situation where you target a fixed coin-
in,
yet the alternatives have different bets per play.
This isn't a nightmare to account for, but it definitely murks up
the
reliability of any drawn conclusion.
Getting a sense of why your question hasn't been comprehensively
covered in some resource?
------
That said, there are some decent rough cut calculations that you
can
perform to make some useful approximations. Jazbo's and Wizard of
Odds' articles provide good fodder for how to approach this.
But it's a lot more practical (and satisfying
to just haul
yourself
in front of the machines under consideration and discover the
scoop by
the seat of your pants (making appropriately reasonable play
ventures
with due restraint, of course 
------------------
Helpful? 
In any case, it cured the tedium of drumming my fingers while
waiting
to proceed on what at one point this weekend felt like an
electronic
···
version of the Bataan Death March ...
- Harry
(excuse typos -- there are bound to be several ... I'm writing this
off the cuff and not bothering to go back a proof ...)