I know most of the Stampede's here are bashers, and dont need the specs of a racer. But I love overkill!!
I have the stock one still in now, BUT I may take my Ace digi(200 oz .1sec) out of my Jammin and try it in the Pede. If not i'll pick up a 5945. I will have to scrap the radio and put in my JR gear so I can set endpoints, I dont want to burn up my digis.
My guess would be most are running stock or 645's.