Originally Posted by derickyan
is monofilament strings considered as a poly? should the beginners-intermediate use those strings? or would it hurt your arm?
All poly is monofiliment, not all monofiliment is poly.
It doesn't much matter what beginners use, once intermediates get to the point where they are breaking strings, it might be time to start investigating poly.
Usually it is technique, not string that hurts your arm.