I've been running my John Deere 4430 quad range around here locally in 3000 rpm classes, sometime 2600 rpm.
I usually run C3/4 in 11,000 to 13,500 lbs. I ran D3 last night and ran out of power. It is certanly not your average 404.
Right now I'm running a HX52 with the 16cm housing on it. Kinda sorta looking for something different and a good shop that can set me up with what I want. Not quite sure what I want or what I should have.
Mike