:XD: SWEET on topic: I think the whole probability thing is not by person but overall, and every kill by anyone counts towards it. That means that for every 10,000ish Dust Devils that are killed on any server by anyone one chain is dropped.
atually the fastest way on members is with fire runes. All you need is a ton of duelling rings. Tele to dueling arena craft them tele to castle wars repeat.
i think you guys should get a huge thing going. i bet if you could get all the other big forums involved (ex: runehq) you could get a couple hundred people doing this.
at the top of fremmy there is a spawn of nats that are only reachable by telegrabing so u can wait there till it respawns and telegrab 2 nats :P heres a pic: