Stan,
I suppose there are guys that change chokes every day, and some guys who change chokes for every shot.
I don't shoot with them though. Might be a blanket statement, but, more than one guy here has noticed that once you get them where you want them, they seem to stay put. I think most guys hanging around my club get to a point where they can shoot their gun competently with the chokes they come to decide on leaving in, and let it go at that. They change guns before changing chokes. If tubes were such a valuable and needed option, then why do they lower the price on the typical old double they are installed on?
How 'bout "Few guys at my club, who shoot on one of the leagues I participate in for the last 25 years, shooting about the same quantity of flats in a year, as one Stan Hillis, from Georgia, mess with their chokes tubes at the club. And, a guy who goes by the name Moses on doublegunshop doesn't mess with them much, either".
That better?
Best,
Ted