I've noticed that on some planes the h-stab is above the point at which the fuselage connects to the v-stab and rather the h-stab goes through the v-stab. On these planes, if you shoot off the v-stab, the h-stab some how stays connected even though its floating above the fuselage. Also, I'd imagine that removing half of the h-stab would put so much uneven force on the v-stab, that it would bend or break it off.
