All Fd's missed and I wouldn't think V has much 6x in his range appart from 68ss which might raise flop. 88 and 55 are the only value hands I really expect villain to have here also a small chance that he does this with a hand like K7 thinking I might
call with overpairs, unlikely but in NL5 definitely possible.

It's not easy to make a decision based on putting a likely non thinking player on a narrow range. However remember that a SB flat range for a reg will mostly be mid to small PPs (i.e. 44-99) and those hands do extremely well here. The VPIP of SB is what will be the main decision point for me with small sample size or lack of reads in this spot. Above 35 and I call. Bellow 26 and I fold. In between and it's closer. There are very few good scenarios that can happen if SB has a tight calling range.