If it makes you feel better I was going to mention that perhaps it should go into the myth thread, but figured it was also relevant here.

Honestly, I was thinking of modern flyrods when I wrote it, but when dealing with modern rods and reels of only a few ounces with only a minute difference between reels, it's largely irrelevant.

The sword fighting thing was just making a point about how were all built differently, even dramatically so, what may fatigue one will be ideal for another. Now as to my qualifications, it's not my sword fighting past has nothing to do with it, I majored in physics. Fly casting has been studied at least several times and reel balance has been determined to have no bearing on the casting characteristics of a rod. Muscle fatigue and it's relation to fly reel weight hasn't been studied so much, but I'm willing to bet that for most of us (those who regularly with with modern rods) that handle shape has a much bigger impact on comfort.