We've had Fellowships on Phinny now for a long time. I've never bothered with the XP sharing aspect of Fellowships. I decided to try it recently. Here are my observations, and some questions. Observations: Both the characters wanting to share XP and those wishing to receive XP turn on XP sharing. You do this in the Fellowship window (Ctrl-Shift-F). I believe the Fellowship leader can toggle this for anyone. Online characters give XP, offline characters get XP. The XP goes into a pool called Vitality. You actually have two pools; one for regular XP and one for AA XP. In your inventory window, below your XP bar is a green bar that shows your current Vitality. It's like the pet health bar. You won't notice it if you have no Vitality. If the character wishing to receive XP is at max level (105.9999 for example) then that person won't earn any Vitality. This is true even if you aren't maxxed on AAs. I assumed that if I was max level but not max AAs that I would accumulate some AA Vitality. Nope. If you are unable to earn Vitality, the Fellowship window will show "Capped" in the XP sharing column. When you want to use the Vitality you have accumulated, you need to turn off XP sharing in the Fellowship window and then go XP like normal. When XPing with Vitality available, you will earn regular XP at 5x the normal rate and AA XP at 3x the normal rate. Regular XP Vitality pool has enough Vitality for 10 levels of XP. AA Vitality pool has enough Vitality to cap your AAs (or so I read). Now for the questions: If my contributing characters burn Lesson of the Devoted or use an XP pot, does it contribute to the offline players' Vitality more quickly? Do I need to worry about whether my contributing characters have AA XP turned on or off? I doesn't seem to matter but I can't be sure. I have AA XP off for now and both Vitality pools seem to go up. Feel free to add any of your own observations.