Fwiw, my mech tells me he like my old super record crank because all the other modern stuff he has to install is outboard bearings: disposable and they wear out fast, in his humble opinion. I heard many similar statemnt s around the web. You win some weight loss, lose some rebuildability and longevity. And they look like ****, honestly. Not worth it imho. If I were you I'd stick to square tapers and figure out at what point during installation you made an error.