Hurt my back the other day, but I got a little more time
to play with the linkage....

I have gone all the way out on the controll horn, 2" from
the hinge line to pivot point and all the way in on the servo arm
.8". On low rate I am still below 100%, 75% is the best I can do,
and now my pushrod arm is not 90 degrees to the controll
horn.

I drilled the hole for the controll horn screw with the idea that I
would use 1.25" servo arms. In hind site I should have mounted
the servos in the stabs like the aileron servo's ar mounted on the
Composit arf planes.

Looks like I will have to reduce the servo arm to 1/2" or 5/8"
to get ATV at 140 and Dual rate to 100% on my low rates.

Does that sound right to you guys? What length servo arms and
controll horns are you guys using?