For just your hand in a vacuum, if you put 65 in the middle:
There are 3654 (29C3) combinations remaining in the deck at the point we're making our decision. Of them, you're looking for a club to not foul, and ideally a club and an ace to make FL. The odds of you not hitting one of the five remaining clubs are
Code:
P = (24/29) * (23/28) * (22/27) = .554
1-P = 1-.554 = .446
AKA 1630 combos of 3654; the odds of you hitting a club are 1 - P. So 55.4% to not hit and 44.6% to hit, roughly.
The odds of you hitting a club and an ace are:
Code:
2/29 (Our first card is Aclub or Aspade) --
we miss everything twice (23/28)*(22/27), so we hit:
(2/29) * (1 - ((23/28)*(22/27))) = .0228
4/29 (Our first card is a non-A club) --
we miss As twice (26/28) * (25/27) so we hit:
(4/29) * (1 - ((26/28)*(25/27))) = .0193
(23/29) (Our first card misses) --
we'll hit an A on our second pull 2/28,
and a club/A 5/27 on our third pull...
(23/29) * (2/28) * (5/27) = .0105
we'll hit a non-A on our second pull 4/28,
and an A on our third pull 2/27...
(23/29) * (4/28) * (2/27) = .0084
Add those up and you get .061 = 6.1% chance to FL,
aka 223/3654 (I double checked this part in Excel
by writing out combos!)
FWIW, one play you didn't mention splits the difference -- play K up top for AK4 (which beats V AQX but not V FL), 6 in the middle, and now you have 9 outs to not foul (As/Ks/Jd/Js in addition to the five clubs) --
Code:
P = (20/29) * (19/28) * (18/27) = .312
1-P = .688 = 68.8%
I don't think you should do this, since playing K in back, 6 in middle is safer.
But it's not completely safe, since you sometimes catch 569A as your final triple and you foul on the end:
Code:
(8/29) * (7/28) * (6/27) = .015 you foul
so 1-P = .985 = 98.5% you're safe
So under these circumstances I'd say making it 98.5% to not foul vs. 44.6% to flush (broken down as 6.1%/38.5% FL/no FL) and I'm ignoring the 68.8% in-between play.
Overall, assuming you're correct (and note my previous post regarding these assumptions) that when you don't foul you lose 5 points, when you flush but don't FL you win approximately a point, and when you FL, you're worth about 30 points (I'm saying 5 for the scoop (since sometimes we don't win the middle), 10 for AA on this hand, and 15 for the overall EV of your FL), and finally that a foul loses 10 points, you get...
Play Safe (K in back, 6 in middle):
Code:
.985*-5 + .015*-10 = -5.075 points
Play for Flush/FL (65 in middle):
Code:
.554*-10 + .385*1 + .061*30 = -3.325 points
So overall I'm going for the gusto and 65 in the middle. Interesting problem. Let me know if you want to provide further/different assumptions but I think you might be able to just adjust some of the final numbers if you do.