I recently bought a Corvette Standard Fretless and only after playing it for a couple of days did I realize that there may be a dead spot around the 11th fret G string area. The note just seems to diminish faster than all the others...even the ones in the higher register. Is this just the nature of that note on a fretless or could there be a dead spot? The woods on the neck (ovangkol and ebony fingerboard) are very dense and I was wondering how often one sees deadspots on woods as dense as these. How should I go about fixing the problem? It's not too late to take the bass back.