I do some set huntin so...
Im calling anything upto 10bbs even if theyre is reraise if i think i can get to see the flop (commonly the biggest pots i take down are where AA/KK make a reraise against AQ and i get in behind with original raiser caling too and i flop set)
Against short stacks (less than a 3rd of the buy in i cap this at 6bbs) you mostly want them in a pot behind you when you have a pp rater than making bigger raises in front.
Dont call with a pp preflop against a short stack. Get the chips in when you are pretty sure youre ahead not totally guessing