It is an idea that has come up in the past, but it's not something we'd really like to do with our servers. It was decided a while ago that all of our servers will always be a team-oriented game if it is on slayer or the like. We like the strategy that has to be used in a team game, and you don't get that when just trying to win for yourself. Yes, FFA does have it's own strategies, but it isn't what we feel we want to gain from our servers. The team concepts that have to be used in any team race, oddball, CTF, etc, make for a different kind of atmosphere - and that's what we like to see from each other - both from our clan members, but also our guests.
Now, as far as FFA race or something along those lines - it is something we've tried. But, it never tends to last too long. Just like with anything new, people enjoy it at first - but then they go back to what was before. We have had some of these on our custom servers - and maybe even the ROCKS server (there might even be a rotation like that now, I'm not sure), but most of the crowd around here prefer the team games. It's just something we've learned from trial and error.