You can always post on here or most of us are on whatsapp to say I'll be on at this time or I'll be a few minutes late. Unless it's coordinated I thought it was first come first serve. We, as in US forum members,have a hard enough time finding six as it is at night to do it so if I have a chance to jump in on a raid mid afternoon I'm going to. I have maybe two day a week I can raid Didds as does a lot of us.