I have been playing with this flail cutter for the past two tears. I am pulling it with a 55 hp tractor so power is not a concern. It has new cutters ( originals were in good condition used only two seasons ) and run at 540 rpm pto speed. The problem is one has to travel so slow it takes all day to cut a six acre field. The plus is it spreads the cuttings out evenly but when speed is increased it leaves half the grass cutting height. My 6' Bushog leaves a windrow but will cut clean to the proper depth at much greater speed. The 370 does not cut grass 3' and taller without smoking the belt.
I thought the 370 would be a good alternative but its not working out as expected. It really needs more rpm and two belts.