I have a Fender Squier sixties classic vibe precision bass and I have it in the tuning of BEAD. When I first tuned it down with the original strings there was obviously a lot of rattle so I got Rotosound drop zone strings going up to .135. The thicker strings makes it a lot tighter to play but I was recording with it earlier this month and I noticed a problem. The tone of it is quite bad. Sounds a dull bell. I thought maybe this was a problem with it being recorded direct in but I recorded with my friend's really cheap and rubbish bass and it sounded a lot better. Any suggestions as to what could be the problem?