Paraphrasing but should be pretty close to the spot
$1/$3 Lumiere Place - Holdem - 9 players
Hand converted by PokerTracker 4
Min buy-in: $100, Max buy-in: $300
BB: $150 - Passive Whale
UTG: $300
UTG+1: $300
UTG+2: $300
MP1: $1,600 - Solid TAG
MP2: $700 - Ultra Aggressive Whale, just joined table with $300 4 hands ago and already ran up to $700. In two of his 4 hands he's bluffed all-in without looking at his cards (and took the pot OTR), and bluffed and showed T4o in another all-in hand
CO: $900
BTN: $250 - Weak player
SB (Hero): $950
SB posts SB $1, BB posts BB $3
Pre Flop: (pot: $4) Hero has A
A
fold,
fold,
fold,
MP1 raises to $15,
MP2 (post-flop aggro whale) calls $15,
fold,
BTN calls $15,
Hero ???
So this is the spot. BB is a passive whale and 3bets here ~never, so we're basically closing the action. Calling is probably burning money in a likely 5-way pot, OOP. So the question is what do we 3bet to.
Pot is $49, but any normal 3bet to ~$60 will likely get calls by at least MP1 wanting to play against the ultra-whale, which will likely lead the other two to call. Normally this would be fine but we're 320 BB deep, and a $240 pot (80 BB, 4 SPR, playing from the small blind) would be a nightmare spot to be in unless we spike.
So we're 3betting pre, but the question in this spot (And why i posted it) is to establish what size we're 3betting to