My error interpreting the definition of torque 'rods'. I use rods (wood dowels) on small (<60") stuff and tubes on larger. Even this simple 'formula' of mine is dependent upon lengths needed. It's a personal preference. Steve Wittman had problems with his Chief Oshkosh. The ailerons would flutter and make whole airplane shake. Ground observers thought his tail needed bracing and forced him to do so. Mr. Wittman learned to make small aileron inputs to get them away from the neutral setting which is where the flutter initiated. He eventually rebuilt the wings (even shorter!). The problem with models is they are flown too fast so servos in wing for each aileron needed. Lots of factors to consider before 'damning' one over another.