If you wanna' see the D-100's bigger brother, the JF-100, featured prominently here's a video of The Corrs from Ireland doing a very folksy version of Little Wing. This JF-100 has the carved heel. Guild really hit it out of the park with these -100 models. (oh, and there's also a Guild 12-string shown on the guitarist's stand about halfway through, probably an F-512 but I'm not certain... )