Your setup is extremly nice nexusdc5, and the servo install you did looks great.
I also thought of removing a few mm of material from the trailing edge of the elevator, to get a nice fat squared off trailing edge.
This also delays flutter, and shortening the cord of the elevator will make it a little less sensitive.
I saw on RCG an electric RB which also had the servos in the stab for many flights before he sold the plane.........so at least he did not lose it due to flutter

Here are the pictures I found of his install: