Servo boxes

[Patternrules at aol.com]

 I'm building a Smaragdz and noticed that they show servo boxes, and it 
appears that everyone makes these, but on the stab is it really needed the servo is 
inside the tube area does the tube boxes add strength to the wing or stab, I 
done a test piece and just cut the foam tight to the servo and inlayed a piece 
of 3/32 aircraft ply to screw the servo to and it seems plenty strong.

Thanks
Steve Maxwell
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