all correct. the other reason is that while some models marked full choke can handle steel very well, because in truth their likely improved modified, patterns with steel through full choke are often uneven and scattered. i've found even modified with steel ,for some of my clients is still too much choke, even for waterfowl over decoys. a lot of them are finding light modified and skeet II produce great patterns with 2,3,4 size steel shot.