Thanks credence, I need just one servo for the tail. I'll get the one you recommended. I've haven't really got a decent hover, but I think the cyclic servos are working well. I'm trying to get it set up properly. What I did is get eye level with the main blades and set the trims so with no input the blades spin flat and level. Is that a god idea? I'll keep looking for info on proper set up. This hobby is challenging, but thats what makes is fun.