building a 2v need piston cc advice/ opinions

[jnobles06]

i have been doing some reading and i can't really decide what cc piston i should run. i am debating on the stock -17cc or the -10cc. the application is a s-trim air to air intercooled setup with stage 3 patriot heads and mph blower cams.
i want to be able to make 550rwhp on pump gas and push it over 600rwhp with water/meth. i have been reading where the s-trim guys are kinda hard pressed to hit those numbers without over spinning the s-trim which i want to avoid. so i would like to hear your opinions and rationale for your choice.

[KungFuHamster]

i say go with the higher compression or sell the s-trim head unit and upgrade to a t-trim