After the h1boot restart finally got a chance to measure the power output of the X CO2 laser versus the rotation stage angle. The minimum power angle was measured at 38° (a change of 1° from previously). The maximum power output was reduced to 5.01W from 5.44W, measured before the periscope. The configuration was modified to reflect these new measurements. 

The X-arm CO2 laser is now unblocked and running stable.