Definatly think you need to be more position sensative with you PFRs. Do you raise the same hands from all positions? Some hands (high SC, mid PP) play much better with position and initiative. If you see people limping, their not sure of their hands and would like to see a flop, tell them they have to outflop you.

Here's my stats though theres quite a bit of 6-max in there
http://snipurl.com/k9m0