rightflyer

I am going to put a 50SX into my CG extra. Should I got to heavier than standard servos or just a use a 5-cell pack?

polarisRCU

You may want to look at the extra amount of weight that this will add to your plane. In my mind, I don't see why you need them. The plane is small enough that heavy duty servos are just not necessary. I would (if you think you're going to really push it hard) upgrade the pushrods to 4-40 and make sure you have clevis locks so that it doesn't come undone.

Cheers

Joe Trinkley

use the standard servos, no reason to add weight