It requires the correct size pipe(s) or hose(s) to get a decent centered fit of the 123As inside the D M&g (a C Mag is nicer overall). 1" plastic pipe gets you down to C size, somewhere around 5/8" heater hose slitted fits 123s pretty good. It is not clear to any of us why the C M&g is better, just that in many/most cases it is... /ubbthreads/images/graemlins/thinking.gif
Then I think a longer spring with a tighter end is required. (although I have a Lith AA taking up space) /ubbthreads/images/graemlins/eek.gif
Then place a M&g Whitestar Krypton for 5 cells, or a KPR112 from Radio Shack into the light, centering it up as much as possible.
Lastly, you MAY want to put some Writeright film, or Belkin film (same effect but less so) to get a beautiful smooooooooooooooooooth beam. /ubbthreads/images/graemlins/huh.gif /ubbthreads/images/graemlins/thumbsup.gif /ubbthreads/images/graemlins/grin.gif /ubbthreads/images/graemlins/grinser2.gif /ubbthreads/images/graemlins/buttrock.gif