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So I'm in the process of a build for a nylon guitar, shaped very similar to the original design Maccaferri guitar. 650mm scale, nylon strings, standard fair.
In my search to create a hybrid guitar (nylon with domed top and tailpiece) I came across the only other nylon Selmer style with a tailpiece. All of these I've seen have the traditional/classical bridge and flattop with the exception of this Jean Paul Sardin Nylon guitar:
Maybe it's just traditional Selmer bracing that's fairly light? How do you get the slight doming and brace enough to maintain the dome without killing the warmth of nylon strings?