The only difference in switching between modes between Quarks, Fenixes, and Dereelight is that Dereelight uses a forward switch whereas the others use a reverse clicky. I seem to remember some talk of a reverse switch coming out, but I never cared too much about it so I never paid attention.
Just push the button forward until you get light. They all have memory so the mode you last used is the one you'll always get first. If it's the mode you want, push it a little farther to latch it on. Much easier to explain than a reverse clicky, if you ask me. You COULD always get a single stage pill and forget modes all together, but since you complained about "only 3 stages" I'm assuming you won't like that direction (do you really need the disco modes?). Keep in mind, if you want a 4 mode Dereelight, the C2Hs come with 4 modes. 😗 Not the same as the Javelin, but then again Dereelight only produced the Javelin because we asked for a AA body.