Claybuster:
You've paid your dues "earned" your knowledge ... and now you KNOW, you don't have to guess !
Me too ... but changing chokes is also a "social" thing at the stations, and a chance to collect your thoughts before you shoot that particular station.
We have some devious course setters ... 10 yard birds and 35 yard birds in a pair, long crossers followed by a 5 yard rabbit, then 2 stations later, a stratospheric high tower, and to end up, overhead incomers about 10 yards out. Most of the time, I can get away with a .007" (tight) Skeet Choke and a .014" Lt. Mod. ... but have got about a dozen other Optima chokes in the bag to choose from ... incl 2 Cylinder (blue) , 2 Beretta Skeet (.003") (red) 2 "US Skeet" (.007") (purple), 2 Imp. Cyl.(yellow) a light Mod. (Orange), 2 Mod. (green) , 2 Imp. Mod (black) and a Full (white). Haven't found any need for a Lt. Full yet !!!
Between 5-Stand, Sporting, Skeet, Trap & Olympic Trap, at several different Clubs, most of those chokes actually do get used at some point or another ... but say 5 of them get pretty much most of the use.