high,
So you dont get to see many custom maps? MMM....the main reason is: the original maps ARE being played the most. The custom maps (if you ask me) are more used for clans. They run their own private server..with custom maps. And uh...most custom made maps have a higher ping than the original ones. However: there are a few servers which contain many new custom maps. Their servername is like this most of the time:
Dualie T3 TDM-BB Realism (NO ROCKETS) New maps at
http://WWW.InvisibleWarriors.com|189ms| ... .138:12203
http://www.arm-clan.com NEW MAPS|68ms|213.221.175.35:29964
(examples: you see the text: NEW MAPS many times)
Good luck,
Rakavolver