...just to update myself I checked the throw of the ASP Triad 'TacLite' against a Surefire G2 with a 9v P90 globe driven by two (unprotected) 4.2v 700mAh R123 cells, pretty much the brightest 2 x 123 light I know.
The ASP Triad still won. it throws 20-30% further!
The other light it beats is a VX1T Lux5 driven by a Taskled CC5WB 1000mAh driver, running of 5 123 batteries (16v) in a Mag 3C mod, and that was put together especially for throw!
Both the 3C mod (nice white) and the souped-up G2( warmer yellow) give more light pointed at the ceiling (my "integrating sphere"), but for sheer tight focus, the ASP wins!
I got mine from
Floyd Hacker who is excellent to deal with /ubbthreads/images/graemlins/thumbsup.gif.