I've got the bull, it's the only one I've had. I don't mind the weight, and I don't see it hindering my swing at all.
Argue all ya want, but the extra weight steadies an off hand shot.
I guess the other issue is the barrel heating up and stringi'n the shot's, I had a little trouble with that and ask here and sure enough vertical strings are from too many/rapid consecutive shot's. I can get 3 shot's back to back then it starts climbing without several minutes cool down time.
I don't know what a standard or ultra will do, but with a cold barrel my first three go to the same POI.
It's all about one cold shot anyway's
but it's nice to know I can get that exta 2 and know it's there.