Some of our favorite guitars are the old (and new) slope shouldered jumbo bodied guitars.  The old Jumbos, the J-35 and others are typical.  These guitars have a shorter scale than most Drednaughts and often are made of mahogany.  They have a wonderful balance and are easy to play.   One of our closest friends has a particularly grand 1930's Jumbo with a voice like a cannon, and while we have not copied it, this model is inspired by this very fine guitar.