So I can pretty much confirm at this point the WADSN bootleg Hot Buttons are just better than the originals.
- Dirt fucking cheap - $25 each instead of fucking $95 each.
- Cables are nice and flexible - unity cables are too stiff.
- The MLOK versions actually have enough body clearance to tuck the cable against the base of the top rail if mounted on the 45-degree MLOK slots of something like a Geissele Mk16 rail.
- Buttons aren't too sensitive, there's a nice 'wall' before the constant-on clicky function so momentary presses are much easier. Surface has a nice texture compared to the smooth Unity ones.
- The anodizing and CNC work on these cheap, Chinese bootlegs is somehow cleaner than legit Unity Hot Buttons.
- Surefire plug versions are actually nice and tight - no play or flickering, which is more than can be said for a lot of legit Surefire plugs.
- Crane plug versions are actually compatible with Steiner laser units without prolapsing their ports.
- You can buy versions without logos so your switchology isn't a goddamn billboard.
- These aren't discontinued; they're all over ebay and aliexpress (for the time being).
- The FDE anodized version ACTUALLY looks like FDE and pairs with Geissele DDC quite well as opposed that honey mustard golden garbage finish that Unity uses on their products.
- The screw and nut sets the MLOK versions come with are absolute trash - replace them at your earliest possible convenience (I'll let you know what I end up using).
- The body tolerances of MLOK versions are a little undersized - there is a bit of play in all directions, but even the shitty default screws these come with lock them down fairly well.
- Both the Surefire and Crane plug versions have a 'clicky' button - this may lead to some potential constant-on issues when using these with laser aiming modules - especially those with a double-tap constant on function.
All in all, I would wholeheartedly recommend these as white light switches if you like Unity Hot Buttons but hate the cost and the issues they come with.