The initial D2 pressure was 1008 Pa, and that dropped to 940 Pa over about an hour. That could have been reduction of oxides, but no trace of D2O was found in the cell after the run. So I think that was rapid loading of the micron-scale deposits of Pd. If that is true, the loading ratio could be estimated from 10 mg of Pd and the cell volume of 310 cc.
I'm pumping out the cell now, and will add gas at higher pressure tomorrow. H2 would be easier if the purpose is just to create stress.