i love all the hard work you guys put into making these post. i bought a WF-501 and i think its great running soild. i would love to run two, one solid and one flashing. i just don't like the rapid strobe. i'd perfer flash 2-3 times and rest then flash again. i think strobe is to much for drivers. i think an sos mode would be even worst, cops might pull me over. so right now i have the 501 paired with a PBSF, not sure if the superflash is bright enough to be seen effectivly when its 12 inchs apart