I know what you mean, I feel the same way about the plane. What size engine are you running ?. Got an Irvine .53 in mine. Lots of vertical.
I checked my horizontal stab and it sure doesn't seem that weak back there.
Funny thing, a friend of mine has a Giles with a fuslage kinda the same shape as the extra. After a hard landing he was taking the wing off and the fuslage fell apart. It broke in two above where the LE of the wing rests against the former so I really reinforced that area. Never would have guessed the H stab.