"My experience has left me with the conclusion that most shooters don't shoot tightly choked guns very well."

My experience is that usually good shooters often don't shoot tightly choked guns very well, Ted.

Last day this season I was with two crackerjack buddies using 870 and Browning s/a choked Modified and Full.

Twice over tollers they missed 20-yard gear-down blacks with everything they had. I told them it's reassuring to gun with mere mortals.