I have a question for you. G&L offer 4 diferent neck configurations with the only descriptions being one with a 7.5 fretboard radius and one with a 12 inch radius V neck. The other two only say they are 12" radius. What are the differences in the various different necks? How do they feel? I play a Heritage 157 and a couple of Martin acoustics. I am thinking about buying an ASAT classic or Bluesboy. There is no G&L dealer anywhere near where I live so I cannot test drive the different configurations. Any info regarding these neck shapes and contours would be appreciated.