The HAM5 and HAM6 annulus ion pumps demonstrated their ability to maintain the annulus pressure (unassisted by aux. carts) for greater than 2 days with ion current values of 5 LEDs and 6 LEDs respectively.  This was done while the Vertex was under vacuum.  Additionally, no pressure communication was observed on the Vertex MTP CC gauge (@ 3 x 10-7 torr) when the HAM5-HAM6 annulus volume was vented.