Hey John,
Thanks and yer right. since I was already redoing my set up I'll go with a wheel, the mk ball link will be as inside as possible, I hope to be able to lessen the length of the control horn bolt a good bit to decrease control rod angle.
I have about a 5 degree angle on the pushrod to servo arm - do you have any guess at to what the max defection is for the MK Ball Link... I am sure I am at the limits...
I am also thinking about going with a high quality heli ball link which will also elevate above the servo arm.
If I have to. I'll move the servos rails flush with the wing skin and let it all hang out
but I think I have options that will help me to keep servos flush.