CO is the fish that has attracted me to this pond. He runs 55/15/1. He rarely bets and loves to call. He has a quad stack.
CO limps
SB is a TAG 20/7/2 guy. He raises to 8
I have been 3betting my SCs as an experiment. I reraise to $26 with 8[d] 9[d]
Co calls and after considerable thought so does SB.

Flop (78) 8[s] A[d] 3[c]. SB checks. I now chicken out as calling a raise with any ace is definitely within CO's hand range.
CO bets $39. SB folds. I think and call.
Turn ($156) 8[c].
Questions:
1) Do you like/dislike turn check/call?
2) What's the best way to play it from here? CRAI? Lead 1/2 pot? Check/call and shove river?