hmm, i think we are all largely in agreement here but starting to get cross purposes
So on the pickup thing, i talked about increased mass (string gauge), bob added talk about increased excursion, we both mentioned scale length and tuning as big issues. I guess we are largely in agreement there except i was thinking about factors i can control directly. I.e. a change in gauge, scale or tuning will affect the excursion. Practically, the out come ends up being the same - more output from baritone strings so hot pickups do not work as well
a wound string may not be 21.4 times louder than a plain string because mass is not the only issue, but i bet most of us have our pickups set higher on the treble than the bass because there is an unbalanced output across the strings (again, lots of other factors to take into account but mass is one of them, as is this perceived frequency stuff, and our old friends scale length and tuning)
i dont think any of this should disuade you from the baritone idea.. the different responses here show how different people can take to them. finding a scale length thats suits you will be the issue, i dont think 28" is for you since you are still happy with the tightness on 25.5 but i do think its worth pushing it a bit longer - unfortunatly a 26.5" baritone may be hard to find in order to try out, 27" probably more available.
i sent Roo away with a couple of packs of different strings to try as finding the right set-up for each individual can take a bit longer - but then how long did it take you to settle on the set-up you use for a regular guitar?
Is a baritone an extended range or shifted range? well its all just semantics and there are many examples in the guitar world of confusing or cross over definitions. To me, the point of a baritone is to extend the guitars range in one direction, even if it means cutting off the range at the other end of the spectrum. I can see how shifted works as a definition for that but i dont think what we call it affects the issues at hand, i.e getting the appropriate scale length for a barry that sounds clear and has a comfortable tension on each string