Kyle, Chris GV6 cammed hard closed during the night -> Vented combined annulus volume -> Removed 1.33-2.75 flex piping from North gate annulus pump port and installed blanks in its place -> Began pumping combined annulus volume -> Will helium leak test new joints after lunch GV6's 2-way selectable electro-pneumatic manifold was leaking instrument-air noticeably when left last night -> it is not leaking after GV6 has cammed closed. GV6's "unwillingness" to cam closed could be the result of insufficient net air pressure at the piston due to the excessive leak at the manifold or hard/non-compliant O-rings etc. or a combination of both, the important result is that it is not due to a "draped" gate annulus O-ring!