Thanks for both of the comments. Combining the two, I will take the info above, combine it with my own thoughts, and turn it in to a excel sheet. I'll then post it here for everyone to comment/pick on.

Basically, I turned my $100 bankroll in to $170, and now it's gone back down to $100 and I _think_ I've been playing pretty much the same. I obviously have some big leaks somewhere. This is on $10NL, over about 2000 hands. Could just be variance, but I don't think it is. I think it's down to consistency (or lack of) in the hands I am playing from different positions based on reads of other players. I'm using PT and PokerAce and have good feels for what is going on around me - I think it's my own discipline and starting hand strategy that's letting me down.