I have that model Falcon. Its a wonderful instrument. If you are that tall and you're comfortable on your Martin dred the size probably wont be an issue. Sound wise its unsurpassed IMO. Lots of rich bass in the fundamental tone, full mids, nice top end. Just a fuller and richer sound overall than any 6120 I've played. TV Classics and the traditional wiring setup with the mud switch is very versatile and can get you any sound from warm jazz to a great Gretsch twang. But still, it's a big ol boy, and pretty heavy. Not a boat anchor, but still a good bit heavier than your Martin. And you may not want to deal with the potential feedback issues if you're gonna use a lot of gain and play loud. If you like Les Pauls and Teles, a nice Pro Line Jet or Penguin is kinda like the best of both worlds. Something to think about is all.