727 TF3 problems and pressure test

Update!
Took out the VB, again, air tested, servos and bands operating, etc... ended up calling TransGo on the matter and they said to add a tv cable. We only had experience with older TF3 kits where tv cable was eliminated, but apparently the kits out now still require it. So we happened to have an ebay kickdown cable (looks just like a Lokar), fabbed up some bracketry, installed and adjusted it. Reinstall vb and all works fine! Three gears of fun and solid shifts.
No where on the TF3 kit instructions did it mention the use of the cable, but that fixed our woes.