Superworm,

I really like your way of using balsa blocks for the hinge points at the stab TE, as well as joining the TE spar and the balsa tip rib to the stab foam core before sheeting.

Hmm, if I would go with the vaccum techniqe for sheeting my foam cores, inorder to save weight as this method uses very little resin for this process and apperantly offer an excellent end result since there is very little risk for bubble formations, do you think joining the balsa stab TE and balsa tip ribs before sheeting could cause any problems in the vaccum process? Knowing that the vaccum method is simulating an enourmous pressure to the foam core jackets and consequently to the cores themself. I am thinking about the risk that there might be less flex (ability to compress) in the balsa compered to that of the foam, when pressed together under the high pressure that vaccum offers, and possibly risking to get a non conformal compression of the "package" (different material with differend desity in the same process) hence risking the airfoil shape, dents crushed or varped?

Question #2:
How to take out a small amount of foam from the stab TE neatly, so i can house the small balsa blocks used for the elevator hinge points? Did you use a dremel, drill, x-acto blade...??? Do you use round balsa blocks or square shaped?

Mate, it sayes on your RCU header that you are from UK, by the sound of it a beutiful and tropical part of the commonwelth, according to what time zone are you trying to endure your days by? Myself, UTC +1.

C.