My recent experience with QD taperlock style bushings is that measuring them is almost a total waste of time. The ones I had my hands on recently (martin and Browning) were almost too poorly machined for reliable measurement. In particular, the tapered bushings, were "as cast" with the exception of edges knocked down on a sander or wheel.
I was very very dissapointed with the bushing, but was unable to find a machined one. I ended up knocking all burrs down with a file and tightening down into the pulley and Jig Grinding the ID. This produced a good fit on the shaft, but the taper mating portions and their fits are still crap.
These style bushings, to me, seem to be a very poor design for anything other than low rpm power transmission etc. I was adapting one to work on a 6k spindle and found it poorly suited to the task. I got it working, but it does not make me happy.