I have a Danny Fowler G2 brass shader machine.... it is driving me crazy, it keeps loosing power as I go. I have noticed that the contact screw is getting a little black (why does that happen so much?) so I have to stop tattooing to clean it off... however it still runs like it is loosing power, touching down it bogs down and just about stops. Can anyone give me so pointers on how to get it run smooth again and/or why it is doing this. I have torn it down to bare frame and built it back up, new cap and springs.
Desparate for help.... Thanks! :)