Thats a nice looking machine, doubledeere! I'm sure that 25 hp Kubota diesel gives it plenty of torque. I know the local Ventrac/Steiner dealer said the 25 hp Kubota's work really nice in the Ventrac's. Did you see know that Steiner makes a Tough Cut style mower? I seen it last night on their web site. Yeah, my hat goes off to whoever engineered the Tough Cut, and it doesn't surprise me that it works better than the brush hog on your John Deere. It is nice how Ventrac/Steiner attachment are interchangeable. I have a Steiner tractor with no Steiner attachments, haha; they are all Ventrac. A 5' Dozer Blade, Tough Cut, 15,000 watt generator, stump grinder, and a slip scoop; always gotta have one of those. The Steiner attachments cost more because of the shipping charges. Since we're not far from Ohio the dealer just drives out with a 3/4 ton pickup truck and trailer early in the morning; gets completely loaded up with Ventrac equipment then gets back to central Pa late at night. The 430 I have is a 30 hp Kholer and I really like it. It has plenty of power.