This subject has been mentioned before here but it seems some people are having issues that may go beyond the "norm", whatever that is. See Bill Southern's forum at http://nuggetshooter.ipbhost.com/topic/30883-mike-c-falsing-fix/ My 5" coil starts to exhibit touch sensitivity at Manual Sensitivity level 9, becoming more pronounced at 10. I have had no issue of note with my 10" coil, which is the coil I use almost exclusively. My impression has been this touch sensitivity in the 5" coil is i