15 servers is about right, yeah.
Unfortunately, FS suffers a real problem regarding lack of players. Some weeks, some games are going all day, but we have been suffering a really slow month.
There are community games on Saturdays at 21 GMT, and 19GMT on a Sunday, where lots of people try to jump onto a server to play then. Until then, however, if you join a server and wait for a bit, someone usually comes along pretty soon and you can get a few small games up. For this, I recomend the RSF 16p server, as it has a maplist designed for low playercounts.
BlackIntel Game Leader
DUKE815: Teamwork's complicated. I've found that ramming a Lambda with a Y-wing at full boost is most effective.