Limit 5CD: To Limp Or Not?

[Al Mirpuri]

I play at Paradise Poker. The game is $1/$2 limit draw with two blinds of 50c and $1. There is a bet and three raises per round unless it gets heads up when it is unlimited raises. The following is a common scenario where I fold instead of limping because I play tag but I have started wondering if I should limp. Here goes: someone limps and I find myself with a small pair, should I limp behind or just fold as per usual. I am getting 2.5 to 1 pot odds and I am 2.5 to 1 to improve to two pair or better. Is it neutral whether I limp or fold or do I have an edge if I can outplay my opponents post draw?