Yesterday the heli gods were looking out for me, was flying my e-7se when some how lost tail rotor when to do a 540 stall turn and had no tail. came down then the tail started to work , doing pieros then lost it again, so slamed the power to it the shut it down coming down slower pieros and was able to auto it perfect. Took home and found plastic horn on my mks servo had stripped out, also found the pin in the front trans, was about 3/4 of the way out, and I used red locktight on it, and tt drive teeth were sharp like a knife. She now has about 800 flights on her , so time to tear her down and check everything. So I got very lucky. Parts are on order. flew the rest of the day with my 516 and 766 and e-5s. I thank the heli gods. l love my synergys.