Just got my hands of a decent looking SM465 & NP205 that I had planned on putting behind the 350 in my 715. Got to thinking about it last nite and wondered if anyone had ever tried to mount this combo in front of the NP200 and use it as a doubler. I know the 200 has heating probs that would not go away, would it be best just to use the 205? Would front drive shaft be too long since it appears the 200 would move rearwards about 12"?