But....you forgot to mention that it looks cool. I tried this same compensator on my 20" T1X and it did seem to open up the groups just a little bit (less than a 0.1" at 50 yds) so, I left it on because I like the looks and it increases the balance and it actually seemed to reduce recoil/movement. Somebody needs to give this a try to collect more data. Good luck with the sale.