Yeah, I bought a Riffe Euro shaft for my RA a while back.
First shot into a rock bent it, but not before I had the dynema cut through by sharp edges on the fin tabs. Dodgy work those. More careful inspection revealed that the fin were just welds with an angle grinder cut to make a slot for the line. The resultant edge cut through dynema, kevlar and (after a bit) wire bridles. Lucky I had the raw materials to experiment with.
Unless you find a well made shaft with well machined tabs give it a miss and stick to the RA shafts. They are a lot tougher!