when to let up with a set?

[numbnuts007]

[ QUOTE ]
I raised preflop to get the tag bb out. It didn't work out but I usually try and isolate a limper with a small pp in the blinds.

[/ QUOTE ]

I usually don't do that because 1) your are out of position, 2) bb is getting 5:1 on his money, and 3) c-betting small pairs into 2 opponents sucks on alot of flops. try calling and c/r alot of flops.