Has anyone tried this? Would it be possible to cut down either end of a round-body A2 to make a single-cell extender for an A2, in order to make a 2x16500? Would there be enough material to make a 17mm or 18mm extender, in order to match an A2 bored body? Starting with a cut-off tail end (which already has one end done for the tailcap, I don't know if there would be enough material to cut threads for the inside of the cut-off end for 16mm/17mm/18mm cells. There would be more material on the bezel end, except for the area cut out for the bezel. It would not be pretty, but with a Koala or Calipsoii led ring, it could handle the voltage of 2x Li-ion cells.