On the other side, I always felt that my Cutts compensated guns had somewhat less recoil than the same gun without the Cutts, but I'm still not sure whether the perceived reduction was due to the extra weight up front or the muzzle brake effect. My guess is that it was the weight, but there must have been a very slight muzzle brake effect too. This one has always interested me. There are quite a few people out there, from the makers of the studded interior Pattern Master chokes to the makers of the scribed-choke Lujtic shotguns, who feel that retarding the wad at the last moment will keep it from being pushed into the shot column on muzzle exit and thus give more reliable patterns. The vast, overwhelming majority of clay target championships over the entire history of clay shooting have been won with smooth chokes.
Rough chokes are nothing new and they have been rejected over time.
I will absolutely guarantee you that all the major competition gun companies have experimented with roughened chokes at one time or another. The nice thing about them is that they are easy enough to test. Just get absolutely identical solid and ported choke tubes from the same company and have at it. You do the work. I'm not going to bother because I think I know what the answer is going to be.