Can you clarify a few things for me? They may have already been stated but I've found myself lost in all the comments.
1) The output shaft of the TC is cut square
2) The output shaft bottoms out in the yoke
3) The taped hole is concentric and square with the output shaft
4) The hole for mounting the yoke to the output shaft is concentric with the yoke
With the yoke installed on the output shaft (no driveshaft), what's the run out? What's the run out with the driveshaft installed?