my Essex fretless P bass... On the G string the 7th fret buzzes. It doesnt buzz if i play it EXACTLY on the 7th fret marker, but if you miss by jusst a little , the note doesnt resonate too well and it buzzes and makes a weird noise... Resembles a dead spot maybe? The problem is whenever i do a slide that passes through that spot, the noise disrupts the smooth sound of the slide. Is there any way of fixing this without cranking my action up a centimeter?