damn. i was all set to order a AA quark when i discovered that only the tactical (non tail-standable) tailcaps have a forward clicky.
the search continues
I had some boots from a Lumapower Connexion X2 I purchased which looked like the same size so I tried to do a swap. It's the same diameter but not quite as long. It won't tailstand when the light is turned off but when the clicky is turned on it tailstands very steady.