Just wondering, anyone who has the Kyosho p51, what engine are you using, Right now I have the tt pro .46, and it flies the plane good. I am going to put a 4 stroke in it I just dont know what size would suit the plane the best. Kyosho calls for a .50 size, but has anyone used anything larger? (I would like a little more speed out of the plane)

Also I fly off a fairly rough field and was thinking about putting retracts on it, can anyone recomend a good heavy duty set that will hold up to the abuse?

Thanks for your input!!!!