I've become more of a fan of walk races.. they take way less time due to no trolling. Also, it's nice when you only have yourself to blame for being a failure.
+1 avirex's idea have a list of permissible scheme variants, and host can pick either one. want bng with ts? OK want kaos with no double damage, OK roper on cave map with no rope and infinite bananas? f@#! off