dion, The ply they used for the stab servos isnt real ply I would add some aircraft ply to strengthen it. Its two 1/8 pieces of something, they like to use the stuff because its light but this is one area I would not have used it. They should have used the same wood as the bulkhead just aft of it. The used stuff for my turbine rails on my last project I was able to pull the two pieces apart and could have easily snapped it into. I laminated mine with carbon fiber.