Ok, so Im revisting this topic, I have put another 25 flight on it since the Cortex and changeing to dubro ball likes, very nice, but I still have more slop than I would like, it bothers me, so it makes me worrie and that is no fun,
So as this elevator set up is just a steel shaft with a nlyon sleve, there is still some slop in that part of the assembly.
So Last night took it apart, and found a bearing from my trex600 kit, that fit on the control arm assembly. Built a plate that screws into a former, basicly supported it on the end closes to the exsaust tube, this got rid of a lot of slop, make it feel more sold, now Im able to see all I have left is 4mm or so of slop vs the 1/2in of slop I started wtih before the dubro ball links. But I can not see for sure the slop is in the gear of the servo as It is the only part that moves now when I move it.
It seems like I should not be worried about 4mm of free movement on the stabs, but My F15 has less, so I feel like the F16 should to.
So all is left to do is eather live with it, or change servos, I have been doing some reading and it seems like the Hitec 7955TG servos have great rep for very tight gear lash, and that is what is in my F15 or otheres seem to love MKS DS1230 Servos.
I ordered new Savox servos at one point, 1270TG but they have almost the same amount of slop as the Spectrum 6030 that are in there. Its crazy to me how just a little movement on the servos = a few mm at the stab. I got some new Futaba 3305 mg for anther project, and with the same 1/2in metal servo arm, I cant feel any gear lash...