Spaw, the more I think about it, the more I think it could bs possible that a solid lining MIGHT resonate better than a kerfed lining, simply because it has a kind of integrity of its own. I mean, if you lifted a length of solid lining and tapped it, you would hear a tap tone of SOME description. If you lifted a kerfed length and tapped it you would hear zilch. But does this transfer into increased resonance when it is all glued up? I kinda doubt it but, who knows?

Your point about sound reflection is viable, but which way does it jump? Does the increased area of the kerfing reflect better than the smooth unbrokenness (?) of the solid? Hard to say. If solid linings really were superior to kerfed linings, I would have thought that the great Spanish classical makers would have used them instead of using "tentellones" which is kerfed lining carried to the extreme.

As far as finishing the inside is concerned, this one has been bounced around for years and I really wish that someone would do a definitive test on it. This is one theory which could be proved one way or t'other.

I agree with the individually compensated saddles on the twelve string, this shows above all else that Mr Apollonio is a true craftsman. There is no reason why ALL twelve string makers shouldn't follow his example.(Except that it's too much work !)

Murray