You sure might consider just having the chokes opened up to something like .007 and .020 and call it good. That combination would give you a lot of versatility and you'd never miss the screw in chokes. Also be infinitely cheaper. Skeet's in Oklahoma does fabulous work and only $45 per tube. It seems most shooters who have the screw in chokes seem to end up with IC and Mod screwed in and never change them.

John McCain is my war hero.