lenny,
Word for word, I agree completely. 100 yds. seems to be about the maximum "effective" range, even though it will illuminate things to a greater distance. Have you tried the FM34 beamshaper filter on yours? WOW!, It out-performs the L4 on floodlight by about 10-20% (albeit with a slightly yellow cast from the incandescent). My favorite all-around Surefire for "cheap, small, light-weight, power, flood/distance, one light only". C3/P91/FM34