Sam, I wasn't trying to pick a fight with you, I just pointed out the fact that Winchester chose to change the 101 skeet guns to cyl in all gauges. I have shot a lot of skeet, over 125,000 registered targets, and probably twice that many in practice. At one time I managed to get classed as AA in all four gauges, and have been classified in AAA class in the .410 at times. I have never shot much at paper because I believe that I can tell all I need to know by the way the targets are breaking (or not breaking!). I did some of my best shooting with a Remington 3200 with Purbaugh tubes. The 20 had 0.014" of choke and the .410 had 0.007", and if memory serves, the 28 had about 0.006". I have known or at least seen the top skeet shooters over the last 35 years, and you are correct that they are shooting pretty tight chokes in all gauges, because they have the ability to do so, and they don't have to take a chance on that 1 of 100 targets slipping through a hole in the pattern. I have also shot cylinder bore guns in 12 and 20 gauges, and thought that they were adequate for skeet, but they won't give you that confidence building smoke puff that tighter constrictions will, and confidence is at least 5% of the final score.
