Hds are real tough to mike because they act like theres actually 2 soundboards on the top due to the supports under the top and bridges.

What works real nice on most HDs is a pair of SM57s or any other simuar responce mike set about a foot above the HD, one on each side about centered between the bridges and about 6 inches in from the short side. Theyre out of the way there but still clos eenough to avoid a lot of feedback issues. Cut back the treb a touch on the board to solve a lot of feedback issues and the result is a good sound. A good contact mike stuck in a handhold, if there is one, on the underside can add a lot to the overall sound too. As no 2 are exactly alike try a bit of expermenting around for the best sound if possible. If not go with the 2 mike setup.

Many have a long substain and that is what can muddy up the sound of fast tunes. The Masterworks ones are notiouris for this. Russel Cook makes them for his kind of music, mostly hymhs and slower tunes. Some of taht substain can be overcome by using padded hammers and a lighter touch.