I went through the Cutts, Poly Choke phase years ago with everybody else. I had a deluxe version poly choke on my Win. SX-1. Worst piece of equipment I ever spent money on except for a Ford Pinto. We all do foolish things when we are young these were two of mine.
No amount of tweeking and reloading variations would get a decent long range pattern (40 yds) out of it. I cut it off with the hack saw one night, shortened the barrel up to 20", removed the vent rib, soldered on a set of Rem. rifle sights (there all steel). And polished and reblued the whole barrel. Works very well for deer with slugs.
I put a new 28" mod barrel on the SX. I still have the SX and it works well. The reminants of the poly choke are still in my parts bin, if you want it I'll send it to you after the mail strike is over.