no way you should have to bend the blade on any spinner. when made right they are engineered for maximum spin. there are clearly differences in the inline and the clevis spinner. the fact that the wire runs through the inline, with a cup in the top of the blade makes the water push the blade out from the wire, forcing the blade to spin. that makes it easier to keep it spinning at slower speeds. on the clevis spinner the blade lacks the rigidity of the wire. the clevis is slack on the wire which allows the blade to twist and turn without trapping the flow of water which would cause it to stay spinning. the inline also causes the blade to have more wobble and because of it more "sonic" vibration. why would I know? I have fished them since I was a kid. (more than a few decades.)Through my company I have made and sold thousands and thousands of inlines. The one thing I have studied the most is the Inline/Clevis difference. Forget the data, fishermen just seem to prefer one or the other. Personally I like them both.