Ok, I hope this is just a tiny bug and not symptomatic of something a little bigger. I have noticed that when I adjust an amp's volume via the HD edit software (say loweing an AC-30 from 75% to 40%), it is reflected immediately in the unit (over all volume is lower). I then send the selected patch to the pod to save it. If I go to another patch and then back to the original - the pod has lost the new amp volume. HD edit says the level is the same as what was saved (40%), but it is much louder (sounds like 75%). If I adjust the volume on the pod and save it on the pod - all is good.
I suspect there is nothing to do but hope it gets ironed out in the next update (which might be when??)