How much wind do you typically get down there in Texas?
Mike asked me early on about that as the Juka is not as fun in the wind, it doesn't handle it as well as the Yak. He also asked me about saying the Juka was more "foamiesque" in another thread. What I meant was that the Juka fly's more like you'd expect a foamy to fly, does 3D better than the Yak but is more twitchy. Mike also told me that I could cut the aileron counter balance area off the ailerons and glue it to the wing and it would do better in the wind. But you might as well just stick with the Yak if you're going to do that IMHO...
I like flying the Yak for IMAC practice and if the wind is blowing, the Juka is more fun to go out and screw around with if the wind is calm and I want to play like I know what I'm doing when it comes to 3D.
Short answer; you need BOTH!!!!
Oh, servo question; I've played around with that mounting issue a bit and decided on the 3M double sided tape like Mike sells with the complete foamie packages. Two things to keep in mind, you MUST get the HD or commercial grade tape which can be a bit hard to find (I wound up ordering it direct from 3M) and you need to scuff up the side of the servo with some ScotchBrite or something for the tape to stick on that slick surface.