This instrument too has a fast response and a well-balanced sound. It differs from the Martin 00-21 in that it boasts characteristics of a “standard” steel-string Guitar: larger body, narrow finger-board and the neck join at the 14th fret.
The cutaway (seen in the picture) is a custom feature which, as far as I am concerned, is a necessary variation included for reasons of playability. (Sitka Spruce/East Indian Rosewood)