BTN is running 44/25 opening 83% of buttons.  I think his btn open frequency stays pretty close to this with the fish limper.  Postflop he tends to play pretty poorly in 3bet pots, stacking off a little too wide in higher SPR scenario's.  Earlier we played a pot where he opened btn, SB called, I squeezed bb, BTN calls SB calls.  Fl 992r spr of 2.5, SB ch I 1/3 pot, BTN min raises pretty quickly w/ AKJ9.  So in this hand I'm discounting his 8x frequency quite a bit.

SB 94/65 tilted fish, 3betting 36%.  His true 3b freq here is probably around 70%, maybe even higher. 

http://wt.ag/15q8TZg

I think preflop is a clear 4bet as I'm a slight equity favorite HU vs SB, 3 way vs SB and BTN and 4 way if UTG cold calls my 4bet with the majority of his limping range(which is definitely possible).  Additionally, my hand is actually dominating (though only slightly) a decent portion of his range.  Also, by cold 4betting, I negate my poor relative position as well as isolate the SB with an SPR of around .6 and get the final bet in to max some flop FE. 

As played, thoughts on post?  Everything looks pretty std to me but I'm open to hearing other thoughts.