by experience [not with weaponlights] with the exception of the E2D [EDIT: AND THE BEAST
] no lights made by surefire can tailstand....inovas can't, streamlight has a few, dorcys can, etc...
I find tailstanding to be the key for "ambient" lighting on demand, regardless of the state of the power grid around me. my solution: keep new rolls of TP in every room....when you need to tailstand, plug it in
some lights are a snug fit some will not. compress the roll into an oval then try again.
now not only your light stands, it also added some extra protection should you knock it over onto the floor.