After reading about Nick Crumpton's methods here
I decided to try to bag the whole joint this time and not seal off on the tubes. You can see little wood caps taped on the tubes I put there to keep the bag from sucking in and breaking.
This is at 20 inHg and it went to 26.5 inHg before it went in the oven.
Here it is resting on a block of wood ready to bake.