Well hopefully I will know tomorrow how well it does. We just got a 2212 today and should get in the field tomorrow. I hope I can run 4, with the 2208 in 200+ bushel corn I could go faster than what the head would feed (reasonably). Our 2388 is a 2006, stock horsepower, believe they upped it to 305 in 06. It's a 12 row ready but we had the tire guy come and put fluid in the back tires, it seemed light. Oh, and I'm talking about a 30 inch row model, I know they have 20s as well.