I was wondering what would cause a coil to work one time and then make a very loud noise the next time I have been using the sniper coil But I was going to check out a volley ball court and when I put my 9.5 coil on it started to make a very loud Buzzing sound. I called Garret and they are replacing it for me But was wondering about Coils what would cause it to do that I do not keep it in the Car I take in with me every time and I do not handle by the cord or treat it ruff I try to take very good care of it So what would cause my problem SO I can make sure I look out for it. Thanks