Yeah, thats originally how I figured it to be, but there were some posts that started making me think there may be a different way of measuring. I wanted to shim the converter back to engage the pump better, but the main issue is that there is a cone shaped feature on the flexplate side of the converter. This cone locates into the hole on the rear of the crank. This is designed this way to keep all the radial loads from being concentrated on the flexplate. It seems like if this cone were pulled away and all the potential imbalances found their way into the flexplate, it would lead to flexplate cracking and damaging harmonics. Plus, the converter would be able to move forward and rearward depending on the load. This is bad for obvious reasons. If the cone were planted properly in the rear of the crank, then the converter would only be able to move rearward and less "tweaking" of the converter would happen.