Mike,

Attached is two pictures of my side mount elevator servo. I used 1/4" end grained balsa as a side to side stiffner to reduce the pipe floor flex. This installation was pull-pull cable. My elevator servo mountng bracket broke loose with only one side to side brace. I then put one brace in front and a second behind the servo. This modification cured the pipe floor flex. It would be best if the brace can also tie into the fues side.

Steve