I have a 2005 4304.I pull a 16' enclosed trailer that weighs approximently 5000 pounds when loaded. The coach has plenty of power.
In comparison, I pulled the same trailer with a 2002 Journey (36') with a 330 cat. The acceleration with the MADP is comparable, despite the much greater coach weight. The "lug" power is better in the MADP.
I see that you are a Winnie owner, as was I. Thinking about a brand change, huh?