Originally Posted by sport6
Well I think you have to read the whole piece:
Lol. I said "the center of the rod doesn't do much except add weight" because, as the white paper shows, the outer diameter carries the loads. That's why the stiffness of a solid rod or tube of the same overall diameter is about the same.
And linked to the white paper so you could read it and decide for yourself what to buy. I've had both, and never had any problems.