For the second, i wanted a richer, louder sound, so tried a larger box (plywood sides, like the neck, and 1/4" plywood front and back. Neck has hardwood spine over the body length, and picking area is filed out by about 3/8". RESULT: initially I thought there wasn't much difference in tone, just a heavier instrument! But got a new set of D'Addario extra light strings and these ring out metallic and clear. Compared to #1, which by comparison sounds dull and less bassy.