When the round is about to ending, go to close to some WP You would like to start Your waypointing job at the new round start, check and rememeber the number of it - then - after the round starts - write in console:
pb wp teleport nr
where "nr" is Your rememebered WP number. I'm always doing it so.
To stop round ending need to hack the game data (currently it's done in the newest CSDM2.1 by Bailopan) - so I don't like to put such stuff into the code...