Nice reply. Thanks. I have it a little bit clear in my mind but there is something that I do not understand from your reasoning.
1. At the beginning of your post you say: "You'll still want the same string height above the top, and the same string path height above the 1st and 12th fret, so the measurements are similar."
In a small, parlor guitar usually the bridge thickness is usually 1/4". In a jumbo you can get a bridge as thick as 3/8.
So if "Desired string height over top at saddle: .500" (my desired value for top to underside of string)"
in case of jumbo, you would have only 1/8 bone sticking out of the slot. On the other hand, on a parlor guitar, with a bridge only 1/4 thickness you would have maybe 1/4 saddle protruding from wood. Isn't this too much? Maybe in your thought you imply the the thickness of the bridge does not change from parlor to jumbo?
2. You say that "Top radius, etc. does not play into this," and I do not understand this. if you build flat the bridge will lay on the same plane of the neck. But let's say that you build (let's exaggerate) the top with a 10' radius, you would lift the bridge from that plane of a certain amount. Why doesn't this play a role on the whole geometry?
3. This is still related to top radius. I thought you have to take care of the top radius because if you only adjust the string heigth by changing the neck angle at the heel, you might get a discontinuous surface where the neck intersect the soudnboard. If you want BOTH the neck AND the soundboard to lay on the same plane, I think you need to have a certain slope on the soundboard that corresponds to the slope you are giving the neck. Is this correct? Well, how do you obtain this?
I hope this is not too confusing.
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