i just purchased a 14" excelarator eq2 pro coil for my sovereign gt,i had a 10" tornado on it before.it seems a LOT LESS SENSITIVE.Is it me or is something wrong? i also purchased a digital meter and frankly,i thought it was useless.it was all over the place.i tried to set it up per minelabs limited instructions and it flummoxed me.i had gold,silver bronze,copper and coins and it was everywhere,also the new coil did not give me the distinctive tones i got w/the 10".should i send both of these items back? help. thanks,keegah