iv been flying the do for a good while now bring it every time i fly normally when the weather is good thats once a week at least. upgraded to 4-40 rods everywere and pull-pull on the rudder and i have a hitec hs-625 on the rudder and futaba 3004s everywhere else using 6v bat. and havent had any trouble works great some say it wont but does for me, im not a speed freak maybe thats why, yes i want better servos and will get them some day never had better witch may be why im not in any hurry to spend lots of $$ on them