[MrDannimal]

I think you're underestimating the effects a raise is likely to have here. Given that you got three folds behind you, a raise probably drives out the SB, and maybe the BB too.

Personally, you're right on the line where I'd consider raising v. calling. Earlier, and it's a lock-raise. Later, and depending on # of limpers, it leans toward calling..

Also, even if you raise PF, you can control the size of the pot on the flop/turn. If your raise gets you the button, you're in a prime spot to check thr flop and watch a 10 bet pot become a 5 bet pot if you want/need to control odds.