your start up problem wouldnt be from testing the cylender pressure, ive done mine (yes it was perfect) and never had a problem. ive got a leak down tester and something even better, its called teekay head check and it tells you if theres any gasses that shouldnt be in the water in there. i personally think its something quite simple thats wrong with your car. have you had your injectors cleaned and flow tested?.
and, does your car still have that mid range flat spot?, im about to spend a lil cash on my 33 to make it go a lil better and wanna research as much as possible