Just in case anyone was looking for a solder-free way to change a reverse-clicky switch for the original forward-clicky S11, FastTech is currently selling a switch similar to the Omten mentioned earlier, but pre-soldered to a tailswitch PCB of nearly the right diameter (20.5mm instead of the 22mm): https://www.fasttech.com/p/4390600

I got mine a couple days ago and tried it out - all you have to do is glue a little cylinder of plastic/rubber to the top of the switch, about 3mm in height, and it perfectly replaces the original forward-clicky switch.

Turbo probably isn’t as bright because the spring isn’t pre-bypassed, but that’s a trade-off for convenience I guess.