ok guys as it states.. and before anyone says anything yes i have searched and come up with nothing that was relivent.

i have a B18C7 which i am rebuilding. i do have an S300 for tuning.
I've purchaced a new Skunk2 pro I M, pro 70mm TB, Pro valves, Pro dual valve springs.
now this is where im lost. i want to run with either Skunk2 pro 1 or pro 2 cams, now to run these cams i have to have atleast 11.5 comp for the pro 1's and 12.1 comp for the pro 2's.
ive looked into what pistons to run and the CTR keeps popping up but i havent found a correct answer on what comp that will kive me.. some ppl say 11.6 and some say upto 12.2 and thats with out shaving the head.
then ive ben told if i run the ctr piston i have a good chance that i will get piston 2 valve slap. ( is this true or can i run them safely??)

If i stay with the P73-00 piston and shave the head so i get 11.5 cop am i going to run into dramas with valve/piston clerance aswell???

im not really interested in forged pistons either. i want to run the oem piston for reliability