Ah, yeah, I think I say this earlier on the Flame Wrath server.
Its a good idea, and any change from the usual is a nice change.
However, I must say it murdered my FPS, and anywhere near either bases made me run at sub-10fps rates.
I think that if it were to last 5 minutes, but both teams were given a 'top-up' chance at 30.00 for anther 5 minutes, it would still work, but it would allow people with crappy computers to be able to play
But overall, its a nice idea.