If you unscrew the head and pull off the selector ring, you will see a protruding tab adjacent to the magnet in the ring. That tab runs along a slot in the head. That slot determines how far the ring can be rotated. If you glue a 1 cm shim to each end of the slot (I used a piece clipped from a paperclip), it will prevent the ring from turning all the way. With a shim on each end of the slot, I eliminated the strobe and the off positions.
Thanks Kato,
I've not received my light yet so forgive me if I'm getting this wrong or making some weird assumptions.
So the travel of the selector ring is determined by the length of a slot in which a tab fits and slides. When the tab reaches either end of the slot, that's the end point - either off or strobe. Putting a shim at one or both ends shortens the travel and therefore excludes Off, Strobe, or both.
I was just wondering whether something tiny attached at the bottom of the slot to act as a roundish "bump" at the correct location would act as a "tactile" stop at the end of Turbo. If you then want strobe, you push past the "bump". ie - the tab initially stops at the bump, push a little bit and the tab rides over the bump into strobe....
ASCII Illustration below of bottom of slot showing two "ends" of the slot, with "bump" at the turbo/strobe point:
|-----------------------------^-----|
Just a thought.
I suppose it could work as a tactile detent on all the levels...
Alternative might be to do something to the tab so that the tab has a roundish downward bump on it, and apply a small depression to the bottom of the slot into which the bump would drop at each output level....
Anyway - all speculation as I don't have a light yet to play with...
Chris