This crank is 144 BCD so I can't do multi range gearing.
I'm doing multi range gearing on another bike project. It will have a road triple 53/42/30 + straight block (or as close to a block as I can get).
But on the Team Pro, I have to use cross over gearing or half step. I can't think of any other possibility given the limitations of the Super Record crank.
Would it be advantageous to convert it to a triple? You could do that with a 144 triplizer ring. Self-serving of me to bring that up since I sell them, but it might be worth considering.