I think it's a general consensus that the mounting mechanism for the Hotshot sucks. Mine, mounted on the seat post, always tilt down out of alignment whenever I hit a rough bump on the road. I'm looking for ideas on how to improve the situation.
I'm thinking of just supergluing the two moving plastic parts so that the angle is more or less fixed. I can't think of a reason why you'd need more than one angle on a particular bike. If you're using the light on multiple bikes, then having the angle fixed means that you either have to compromise slightly, or have multiple mounting brackets. Fixing the angle also means that you can't just temporarily push the light away if it's in your way (e.g. when you're putting the bike on a stand and need some clearance to clamp down on the seat post); but you can always just temporarily remove the whole thing in these cases.
Another idea is to use Planet Bike clip on the Hotshot. This assumes, of course, that the Planet Bike mounting mechanism is superior in staying true to its desired alignment even after hitting bumps on the road. I've also seen people who successfully mounted a Hotshot on the seat stay thanks to Planet Bike's clip and mounting bracket. I happen to have a Planet Bike Superflash (not the turbo), so I tried to perform this mod, but for the life or me I couldn't remove the clips so easily, and I didn't want to push it too hard for fear of breaking it.
Has anyone else solved the mounting problem with Hotshot? In one hand, I can just leave it the way it is right now, and just be smarter about avoiding bumps on the road. In cases where a bump wasn't successfully avoided, I may be forced to stop and realign the light, but this isn't such a terrible idea because it'd also give me an opportunity to inspect the whole bike and make sure that nothing else was broken. That said, I think a better mount option for the Hotshot is still an idea that merits discussion.