You simply cannot 3bet/fold as SS especially not with a small stack mathematical wise:
OTB: 100bb Villain
SB: 100bb unknown
BB: You 15bb (i) /20bb (ii):
50NL thus maximum rake %
OTB raises to 2.5bb / 3bb , SB folds (0.5), BB 3bets to 7bb (8bb / 13bb)
There can be 3 things:
OTB shoves (all-in)
OTB calls
OTB folds
OTB shoves:
BEQ is (i) 15bb+2.75bb+0.5bb+7bb*0.95 = 24bb versus your 8bb, meaning you have to get 25% in order to be BE against a range
Even if his callingrange is QQ+,AK, you have 28% so in my opinion it is a leak to 3bet/fold with a 15bb stack. Especially because of the added value you get in case he folds. When he calls, will you then c/f or shove postflop?
If it is the latter; won't you rather want to see five cards immediately? Imagine the ''I got AK and I miss but I am still committed postflop-feeling''
When you have a 20bb stack, your BEQ is 20bb+2.75bb+0.5bb+8bb*0.95 = 29bb versus our 12bb remaining stack giving us a required BEQ of 29%
Now you can fold to a shove when you exactly know his call/shove/4betrange is QQ+,AK+ but ofcourse there are frequencies of bluffing, looser range & incomplete information which changes the equation instantly from a slight -EV situation to a solid +EV situation.
You gain some FE by 3betting small but generating more FE by shoving makes you 1) invulnerable for bluff frequencies & 2) There ain't a call option to see a flop for Villain
As pointed out here 03/05 SSS Adv. Coaching - resteals against small stealraises
In order to incorporate the 3bet/fold move to be called +EV based on dynamics and not on math requires a radical change in your resteal repertoire:
Instead of value restealing (long term EV), one must incorporate a solid postflop skill when 3betting small in case villain calls. Furthermore Hero must incorporate a sense of bluffing frequency thus a small resteal with a pure bluffhand like 7:d2:h
One thing to note is that precise information as in Stats per position (BU/CO/Hijack) instead of an average number is far more accurate. Ofcourse a solid sample size requirement must be met in order to proof its accuracy
- Gerv