I get such a laugh out of this topic. DP's are the only way to go according to those that have them "but" then I read how some are noisier than others(so they are not that quiet as some would lead one to believe) I sure don't like standing beside one when it's standing still let alone be in one. Then I read that to get the good handling one must have a tag axle. Then one must have a side rad to be able to work on one easily. TEHO and I'm very happy with my late model gas coach and see no reason to spend $$$ to "upgrade". If money were no object I might consider a tag axle, side mount rad DP but I don't have unlimited budget.