I don't have the packet, but I believe besides it being a mandatory bonus--the times and/or rest bonus...or other things will make it mirror as if it was a checkpoint and can't leave until 4 a.m. or maybe its a beefy rest bonus as well. I just get the impression for riders that didn't skip the CP....it's pretty much the same as it was...except for no scoring.One thing I haven't seen addressed is when can the riders who are not skipping the second checkpoint leave?? Since there's no scoring and they already have the leg three bonuses what do they have to stay for? Can they leave right after they've checked in? Wait until the 0400 riders meeting?