Sloooowww vent is done -> As such, I connected the HAM6 vent/purge connection and cracked it open -> Now the YBM vent/purge is connected with its valve partially open and the HAM6 vent/purge is connected with its valve partially open -> Purge-air air currents across the ITM (real or imagined) can thus be manipulated to compensate for the 1st component to be removed (YBM spool, or HAM6 door)