The "helium level issue" was a minor nose level alarm and completely unrelated to the septa. The high power of the microwave supply, which is resulting in these totally awesome polarizations, also makes a tough job for the PID loop on the nose level. This resulted in a small excursion to around 21% in the nose. We've adjusted the maximum step change to calm down the PID.
Target operators should be aware that when the microwaves are turned on for the 2.5T running, the PID on the nose level may have trouble keeping up at first. Feel free to set the nose to manual and put it around 0.5 when turning on the uWaves to get the PID in a better place before going back to the PID.