Originally Posted by
mechBgon
From directions where it's not blocked, it should be worth having onboard. But it doesn't have *quite* enough power to penetrate solid metal

so you wouldn't want to be relying on it by itself to cover your backside from all angles.
I just had another thought on mounting-
use a Gino mount. This thingy can be used wherever a M5 bolt can go, so it it could be used at the seat stay or the drop out. But I don't know what size clamps that the PDW and PBSF lights use...