Thanks for the reply Flintsword. i've read a quick skim, but will digest it properly when not at work. looks like great post though.
the main reason for working out %, is because out of the last 22 hands that have been ai (big bets and calls, not due to being <2bb's etc) I have lost 20 of them. Most of these are due to me pushing from the button with blinds at 400 or 600 (statrting stacks 2k) and constantly being called with good calling hands

. but then varience is varience and I'm having a better run now.