Cycleops hammer power discrepancy with power meter increase over time

Gotta ask to satisfy my curiosity lol My Hammer and assioma uno have aligned pretty closely in the past. I use power match when I do use erg, but I recently was trying RGT and had it receive trainer power and it’s around 30w below the assioma, and of course I’ve been using this stuff forever and have everything calibrated, latest firmware, etc and still the same discrepancy. Is there anything servicing wise I should consider? or do i just have to let it go? lol