Heavens !

Thats a really lightweight construction. Is it the .049 powered model I saw a thread on previously ?

I would have thought that at low airspeeds it wouldnt make any difference whether it was slab or elegant airfoil. Obviously I am wrong to assume this. Maybe the correct shaped section like your design increases the efficiency by maintaining a smooth flow for high angles of attack.

I will try a larger elevator first as it might be the simplest way, failing that I will produce a sectioned stab like yours.

Sean