No suggestions, but one thing to watch with Futaba servos is that some of their digitals are 4.8V ONLY. Don't know why, but it prevents you from gaining essentially free speed and torque by going to 6V, both good things. Seems kind of brain dead to limit themselves that way, given that the other brands don't have that limitation. There is no downside to 6V; I've been running it exclusively for 3 years.
BTW, there is a good article in this months RC Report on 4 cell vs. 5 cell packs, and the myth that systems draw more current on a 5 cell pack, and that you cannot fly as long on a 5 cell pack with the same mah rating as a 4 cell. Good reading, backed up by test data. Bottomline, there is essentially no difference in either current draw or flying time.
Jon Lowe
ORIGINAL: Super D
How about some futaba suggestions for those that are just partial to futaba.