I'm looser with more limpers, tighter with less.
Generally trying to see flops with high implied odds hands. s00ted aces & kings. suited 2-gappers with more limpers. 1-gappers with less.
Lately I"ve been playing with isoing limpers that fold a lot of flops (yes OOP I'm crazy like that).
Stopped calling unsooted cards for the most part, but a JTo I'm still limping behind a couple.