Howdy, As of last night I noticed that my A string rattles slightly when I hit it open. I have high action and I pluck the strings hard. I've had this bass for a little more than a year now, and I haven't changed the strings on it since I about got it (La Bella Jamerson Signatures) when I had it set up professionally. Aside from the odd maintenance the bass hasn't really been touched, just played a lot. I noticed that when I put my finger over the A string behind the nut the buzz goes away completely. I've seen players place rubber bands behind the nut before, but I have no idea where to get them. Should I just buy a lobster and take the rubber bands? How do I get them on the bass? Is there another way to fix this aside from filling the nut groove with super glue?