I recently tuned the strings on my graphite neck 4 string down to B E A D. Not new strings, just tuned them down, got it? They are chrome flatwounds and the axe has a 33" scale. Suprise, it sounded damn good and the old E string, now tuned down to low B was relatively tight. The only fret buz was on the newly tuned A string, which I can easily adjust. I don't think much would be gained by adding an actual B string. Any thoughts on this set up?