Cylinder and full was actually a very sensible choke combination for an "all around gun" back when paper shells and wads were the norm. I've seen several guns with those chokes, and have one, a 10-bore Rem 1889 with one barrel marked "choke" (full) and the other not marked (cylinder). I was told it was made that way to shoot ball in open barrel. But I often use one skeet choke tube and one modified tube for upland hunting (full is TOO tight with modern shells).