I would not recommend a 6 foot bushhog for the 3320. My mom's 5 foot King Kutter can bog fairly easily on her cab/air 3320 even at 2600 rpm, blades sharp etc, while my 3038e handles a 6 foot RC 2072 with ease even at 2100 rpm. I wonder if the load demands of the cab/air setup saps more hp than JD specs let on. Based on how dramatic the difference is, if my 3038e really produces 30 PTO hp, then I can't believe my mom is getting 25 out of hers. It seems more like 20 - 22. Perhaps if you have an OS tractor, you would fare better but I would surely recommend borrowing someone's 6 footer to try before you bought one.