Well I did discuss it with my mechanic, Roger. He scribbled down a few notes for when he calls. We even discussed the wider width bottom bracket shell and how that might influence the dimensions of the external bearings. He did not seem to feel that it would be a big issue if designed correctly. But yeah, I hear what you're saying. If the Phil external 35 mm "Klein" press-in Shimano bottom bracket is based on the English 68 mm bottom bracket shell standard - then I'm going to have a real headache misfit on my hands.