My inclination at this point is to go with the Eliptrack and put the damn things on top of the Cornwall cab with the long term goal of finding K-horns and using them there. If I were to do this, I'd be inclined to keep the original horns for when I resell the Cornwalls. I do not know of anyone that has mounted that horn/driver within a stock Cornwall cabinet. If I were to just do the Fastrack mod, I'd sell them outright. As-is I think they sound pretty good. My cousin has k-horns with all the Volti goodies and it's making me lust after the larger mid horn.