Not a good one anyway. I think the last time I checked the switch logs, it was showing an avg 150k/bits for the game as a whole, but that average includes me using FTP to send new builds up. Apart from the initial map send, it should not be a lot, most responses are under 50 bytes, some of the larger ones might run a few hundred bytes, like a sector initial display. That's one of the things on the to-do list is get more granular details on individual socket usage.