Hi all..I was in creswick today and found a little nugget about a .02 I'm using a 12" evo on my 4500 I noticed when I waved the nugget over the left side of coil it gave me a really good call it pretty much screamed but when I checked it on the right side the call was much less I would say less the %50 quieter I'm just wondering if this is normal or should I take it back under warranty?any thoughts would be appreciated cheers