I have to be honest here too. A lot of the 'innovations'
in modern guitarbuiding are, at best, debatable.
I absolutely agree.
I got all my "early" knowledge about instrument construction from reading reviews in german guitar magazines. It seems that all the reviewers had an intimate knowledge of how a guitar/bass was made and what contibuted what part to a good sounding instrument. Yet all of them were players it seems, not builders

According to them, the low B's got better over time as luthiers would build instruments better suited for low B's, the pickups were made specifically for 5-strings, the hardware got better, the strings were improved etc.
I don't know much, if anything, about what affects tone and quality in a guitar string, so I'll give them that point. It might very well be, that string makers learned to make a better B string.
The remaining parts of the equation however are, in my humble "armchair engineer " opinion, absolutely debateable.
Anybody that TRULLY knows what makes a killer low B, please, please let me know ...
