thanks guys, the above post is how I understand the workings of it. So the glazing could be happening from not enough line pressure, or if the 2-3 shift is not instantaneous.

FWIW, the trans is an auto valve body, deep pan, trans temp gauge never goes above 180 (sending unit in pan), has a cooler on it. The shift linkage is set correctly. The trans itself was originally a TCi super street fighter that I recently had rebuilt(not by TCI), so the VB has some mods to it by TCI.