i used a shocktech minicocker ASA and it fit, but i had to use a washer on the male threads so as not to hit the trinity inards . . .
i'm using the centerflag inline which i just got, and it's amazing. i got a string yesterday 278, 278, 278, 281, 278 and i've only put about 1000 shots through it, so it's not fully broken in yet
(that was w/ the stock CP barrel and TC paint, it was warm, and pretty humid, but the paint was fresh, aside from being out that morning)