Hi,

Other than the designer/manufacturer (who happens to hold a Ph.D. in aeronautical engineering) recommending it not be done? Since the advent of way-overkill servos, it's not such a big deal anymore. So, if it gives you peace-of-mind, then do it. Again, I can only point out that you'd have a very hard time finding any full-size aircraft in production that have full-flying stabs balanced on the pivot. Is that just coincidental?