This is a great DIY! I am getting ready to remove my UUC RTAB's, I am tired of dropping the arms and re-greasing them to get rid of the squeeks. I have new M3 RTAB's and this issue of pre-loading is key. Please take a look at the figure from above I modified. Is the top of the bearing hub and the top of the carrier alignment tool in the same plane? It looks like it is in the pic and in the pdf posted above. If so, I think I can devise a method to get this lined up properly. Anyone know for sure?