as for the bps we kind of make it up as we go along depending on what markers are present on the day. me and paul kinda agreed on 14 bps ramp on a 10 pull is acceptable . i personaly have mine on 1pull 1ball uncapped .Is is air supplied here and do we have to book spaces or just turn up? There is gonna 3/4 of us coming down. Also is there a bps limit?