Started with a 870 hunting model and then was loaned a 870 trap, then my grandfather was nice enough to let me use his old citori hunting 12ga.
From there I went to a citori trap grade V, and along the line played with a BT-99 for awhile that I could never really shoot as well. I also played with a BPS trap for awhile too, it was nice as well, but I went back to the citori.
After that I had a perazzi mx3 special combo fit to me at the grand american and have not even thought about getting another trap gun since. However while the Perazzi is a great gun, I contribute that more to the fact that it fits me perfectly.