Installed a tf2 kit in my BB 727 and I have reverse and first but slips in second and third. I did all the mods in the kit and rechecked all over and over before I buttoned it up. throttle linkage adjusted ,bands adjusted per instruction,fluid is spot on. I have first and reverse but don't feel a shift out of first and then just slippage. it also seems that it takes a few seconds for first to recover from slipping. can anyone suggest what I should be looking for when I tear it down again? I suspect the govener plugs or the orfice plug in the case.I also adjusted the line pressure screw 3 turns ccw. Thanks!