Invite other classes/builds that are also not popular in "efficient leveling groups" and start a mini-group. Not all XP groups need 8 people. Just because your group is at 5/8 or 3/8, doesn't mean have to fill the empty spots. A long time ago in a realm far away, one of my characters was a Warden that couldn't heal for chit. He could PBT and taunt. I teamed up with Rangers and Nightshades and we would duo or trio XP for hours. It turned out we were doing about 70-100% of the XP rate/hour that the "efficient leveling groups" were doing because we didn't wipe or lose someone due to beer run or whatever. I don't know how this applies to Albion, but just thought I'd share.