you'll be fine either way you go...you only worry about clearance problems w/ BIG cams and BIG compression....i have ran almost every piston you have stated, i even had a set of endyne rollerwaves that were damn near identical to a CTR...i have never had any problems.

if it was me, i would go USDM ITR's....that way the compression isnt outstanding.. that way you dont have to run 93 all the time...but im a cheap bastard.