Well, my Kicks .685 Buck Kicker choke came in today and I patterned it at 15,25,40, and 50 yards. WIth various OO Buckshot.
It performed very poorly at any distance past 15 yards.
With Remington 3" buck (normally a 12-14" circle with my el-cheapo Primos Dead Deer choke, wouldn't get more than 10-12 pellets even on the paper at 25 yards (using 14x18" targets). The Winchester 3" XX Supreme was even worse (The Primos tube would keep them all on paper, the Kicks put maybe 2/3 of them on paper @ 25yards). The Winchester 2.75" XX Supreme did okay, a hair better than it did from my stock MOD tube that came with my M4.
Then I backed off to 50 yards with the 2.75 Supreme. It put 5 pellets on target (For reference, my stock MOD choke would put 2-3 pellets in a 6" circle every time at 50 yards with this load). The 3" Supreme put 2 on target, marginally.
For reference, my 3" Remington from the Primos would put 7-8 on target at 50 yards, and at 25 yards they were all in about a 12-14" circle.
The only thing I can say is the choke appears well-made and looks cool. I will call Chuck tomorrow and see what he recommends that I do, but as of now, I am not impressed with my results. From what I have heard of him though, he will get things straightened out for me. +1 for good customer service.
ETA: I just read my instructions that came with the choke. Says "Patterns inside 20" at 40 yards are attainable with premium, copper-plated buckshot" so basically when I want to shoot my cheap remington ammo and get good patterns, use my Primos, when I shoot premium stuff, use the Kicks. I will probably shelf the Kicks though as the Primos throws better patterns with much cheaper ammo.