I've found it especially effective against superior teams. As far as playertypes go the wingers scores a shedload aswell as the striker, the OMC is my prime playmaker. I play with 2 DMC istead of MC, one of them just needs to be an oldschool destroyer such as Roy Keane (i play Sandro from Internacional, works great), the other one is more of a passingplayer, but he still needs to take on a big workload in the defence... just regular, strong pacy defenders (one of them is set a skilled atm, this is not needed, if none of your cb's are gifted with the ball, just change to normal).
A sweeperkeeper at the back , will probabley make a couple of misstakes for you, ecspecially if your a LLM, but don't worry, he will prevent more chanses then he creates.
As i said before, let me know how it goes !