Jim, I have several dozen of various strobe mounts from Aerial Pixel, he's been printed them for years. They are all custom made which means they fit the different arms tightly and they mount in such a way as to avoid propeller strike. They also take into account the arm angle to give the maximum visibility meaning each housing has a different angle. All mounts are marked, left right front back. They are super durable but I wouldn't take them on and off daily. Once you insert the strobe light in the socket, it's very tight so you probably should leave it in there where it can be charged thru the accessible port. I mark the mount with the color because you cannot always tell which color they are. Every drone has their own set of strobes so this is ideal for me.
Obviously there is nothing more durable or more professional especially when you consider the glossy black mounts but there's nothing wrong with good strong velcro for a clean, stealth installation in which you want to easily rotate strobes across different drones. It's not that windy and bumpy that you need much better although I wouldn't trust them on my FPV mostly because there isn't an available wide flat mounting surface for a good grip. A detached and lost strobe is not a big deal, you may be able to go find it flashing at night. It's a big problem if it gets caught in your prop.