well if a server has scheme buff is easy to do it.
make scheme buff , participate olympiad, when counter says 30 secs be close on a buffer.
10 secs start removing buffs (if you have any)
5 4 3 2... 1 PRESS your scheme boom thats it.
its matter of timing as you understand but if any admin has found this bug and already fixed then of course and it wont work.