Yes i have heard servos could be damaged so the tx is always turned on first,might of been some binding but they feel free,i think the linkage might of been too tight,maybe always been there and i just heard it today,i don't usually put the wing on when i run it around the yard so...
I cant tell if it is moving the arm,if it is,it's so slight i can't see it but i can move the fine adjustment and it will quit for a few seconds,i cant tell if it's a buzz or chatter,but if i had to guess i would say it's chatter.
Thanks guys