I currently play a Carvin LB76F (34" fretless six-string). I love the instrument, but the low B just doesn't have as much oomp as the other strings; there's a bit of floppiness to it. I'm realy looking for a tight and smooth sound across the whole range. I've been considering getting a Carvin XB76FP (35 1/4" with P-series electronics). Is my assumption that the longer scale will address my issue with the B string valid? Are there downsides to the longer scale? (Also, if anyone has thoughts about the P-series that would be helpful too.) Thanks!