I just got back from a 6 week holiday and I've got some catching up to do.
I reckon I've used more than 40 MG14 servos in total and they work very well in my experience.
Right; now I'm going to watch the Skywing Extra video and see if I can avoid the temptation to get one
EDIT: I watched the video. Nice flying feda. It seems like the Extra has the same good flying qualities as the MXS.