hi guys new to the forum, ill get straight down to thebuisness end, i own a ace 350, ive owned it for nearly two years now, and warranty cards expired, and tried ringing garrett and did no good with them, so im askin for any help or advise on how to test for problems and is there a rebuild kit available, but back to the problem, the coil connection port on the control box, you rub your finger over it or touch it, it goes all erratic bounces all over the place, does anyone out there have any idea on why it does it or how to fix it? cheers id appreciate the help. 
