So I started building up my 90' Miyata 914 tonight with the new-to-me group I got. I put the BB in and bolted the cranks on. I suppose ideally you'd want the same distance between each crank arm and the seat-tube. I measured and the inside of the drive-side crank arm is 1/2cm closer to the seat-tube than the other crank arm. Does that small difference really matter? I've never really measured before, so maybe they're all usually exactly the same distance or maybe 1/2cm isn't really a big deal?