Hello all. i have a ATPRO International & it is starting to false allot. i can lay it down on the ground & it will give a reading from 1 end of the scale to the other every 1 or 2 seconds asthough you are swinging it. makes it near impossible to use. curious if any one else No's what night be going on or had a similar problem. maybe the stock coils are shit ? thx.