I just finished trying out this mod, and it did lower the hum a lil bit, but i'm still getting quite a bit of hum, adjusting the pots doesn't seem to lower or raise the hum. When i remove the pot from R110, that's when i hear the hum increase, when i remove the pot from R106, nothing changes. I'm wondering if it's maybe my transformer, I tried hitting the top of it like some mention, but that doesn't seem to do anything.