Wrapping the reciever wire around the boom. its best to run the wire out and not coil it around anything. Or go with the deans antenna. I use to wrap my antenna wire and I was loosing servos left and right. I stopped wrapping my reciever wire and my servos stopped burning out. So, I figured somehow signals to each servo were being strained causing my servos to over heat and burn out the pots. I could be wrong but I havent had a servo failure since and its been almost if not a year now. I was loosing a servo on average of one a week.
Your fore and aft cyclic servo seems to be in a strained position. Also I made me a new crutch (homemade) based off the Corona crutch. The motor in the pic lasted a few flights and died, right now I have a EF7 mounted. This crutch is also a little taller than stock with a taller mainshaft also.