PLO100 - 6 players

HJ - Hero - 100bb
CO - 70BB
BU - 150BB
SB - 150BB
BB - 100BB

Hero : 3457ds

folds, Hero raises to 3.5bb, CO calls, BU raises to 14bb, SB calls, BB folds, Hero raises pot...

CO some passive weak fish
BU good aggro reg
SB ultrapassive whale

The table is very sticky.
SB being a fish vpip preflop almost everything (vpip ~95%)

I have a good-looking hand, but on this dynamic table, not so sexy as it looks.
I opr it, called by CO, and BU squeeze.
BU range is strong, but he's a very aggro reg, high %3bet preflop (~11% overall), especially against me. we have some history.
SB calls as always.

Then back to me.
If I call, CO would call often, and we're going to play 3way or 4way more often.
I really don't want to play flop this hand against 3 players with a SPR of 1.xx, as I would be dominated so many times

I decided to 4bet for some reasons :
- CO will often fold (cs preflop but not gambling)
- BU has a strong range, but not allways AAxx. I saw him 3bet/fold quite often. I think he will fold most of is Axxx (non AAxx obv) and KKxx. Moreover he's 150bb vs SB.
If he has AAxx, my hand is quite ok vs him (40-50%). Let's hope he doesn't have some 6789-ish
- SB wants to see and play flop (he calls any raise and lots of 3bets with really trash), but won't put 80bb here with trash.

Does my play look ok ?