Seems today is the day for me to get rocked by low sets. I am wondering if I should take a whole new approach to my own playing of low PP's and doing more than limping in.

What pot odds warrant calling with low pairs? I've read the sticky'd post when your dealing with a another higher pocket pair that you can stack him and clearly see the logic behind it. But if you can't put him on a high pair simply because of a lack of action before him, then at what point is the call worth it?

1 in 7 of hitting the set, but he also need to hit the flop as well to get a chunk of his stack. Hows does that play into the implied odds calculations?