3150 with a 140 ttsx works just fine in mine. First elk when it was first built. 2nd elk with it after custom stock and done. 1st oryx. 2nd oryx.
I like mine alot. Wouldn't change anything. Don't care to trim, so for me, AI is the way to go.
The trimming argument is, if nothing else, a little silly. I know the 280 AI works and could post pictures of pretty decent sized game taken with mine. But I could also post similar pictures of like game taken with a plethora of factory cartridges as well.