Which speaker to choose?

I currently have an older pair of Barking Dog Mk-1's and am considering a move up to the new Mk-3's, with the "Sonic Muzzle" wool blanket technology. Should I keep the Mk-1 or bite the bullet and spring for the Mk-3? Also, I have been looking at the new Sonic Haircut line with their patented titanium knife-edge tweeter. I would need to know how they would match up with my BoatAnchor Danforth-1A amp with peak current limiting mods. I am open to suggestions for other recommendations any of you may have.