Originally Posted by
Kontact
You seemingly misunderstood the problem that needs solving. We don't need to find the midpoint between the dropouts, we need to find the reference plane that bisects the bicycle frame fore to aft. From that plane, we can then measure how far we need to adjust each dropout.
If our dropouts are already cockeyed -- which is the problem we are trying to solve -- they cannot be the basis for our measurement to correct that problem.