Sorry to take so long to get back. I think the D&B is a good value for the money. They are built a bit stronget than most of the engines today since the world has gone ounce crazy. I would recommend calling Ken if it is not too much trouble. He is very honest and if the engine does not fit your application, he will tell you so. The 33% 77" bipe is plent big for me-- anything bigger is a hassle. As for servos, I have 5945 Hitecs on mine-- ONLY THE BEST FOR MY BABBY!