The Sol Ro minis flag you for Sol Ro's Tower, or chamber, whatever.
Unflagged people can be raid flagged in but gods, is it a pain in the ***.
Be aware that there are two guards who will aggro as soon as anyone zones in. We used to have a paladin zone in first invulnerable to aggro them, then tanks and healers right after him, then everyone else flagged for the chamber except one flagged inviter.
You can have the unflagged camp as they get into the chamber. This will keep them from getting kicked but it won't help much with the flagging - once a flag has been used, it's been used, period. You'll have to reform the raid, probably a few times, to get all the unflagged people in.
Leave a flagged group leader outside the chamber to invite. As unflagged people zone in, eventually someone will get the message that the flags are used up (your allies are spread too thin, I believe is the message). At that point all the unflagged people INSIDE the chamber camp out, the inviter targets some flagged person in his group, the raid disbands and reforms. The flagged person in the inviter's group needs to be a group leader to get into the raid, so he targets the inviter and asks for a raid invite, then re-invites the inviter.
Invitations resume. This process may have to be repeated a few times, not sure why, seems like you can't use up all 15% of the flags at one go.
Eventually, when everyone is in, the raid needs to be reformed one last time to refresh all the flags. Reform quickly, get the unflagged people invited ASAP. The unflagged people who had camped out need to be informed that they should log back in (we had them camp to alts and join a channel for this purpose).
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