ORIGINAL: L0stS0ul
No, I've had the stock antenna mounted about 50 different ways. The last one I had looked like the picture. Still glitched like mad.
I've read that the GWS RX was not too high in the quality realm. You may have gone from one bad one to better, but still not great. Usually glitching is caused by radio noise. Check the capacitors on your motor to see that they're making contact. You also might try wrapping the Rx wire in foil to shield it. Don't know if that would help or make it worse.
On another note, did you say a while back you have revo set at -15, -15. I wanted to set mine and can't remember. And with three threads and over 3000 posts I don't feel like looking for it. IfyaknowwhatImean.