1. Yeah this is a trivial roll-to-save, don't worry about handwaving it by saying you prepared buffs beforehand.
2. Go ahead and modify your sheet until I post again (won't be until all PCs post or too long passes).
3. Thanks for the link @remetagross, I think a lot of these observations apply to IRL tabletop except that people can't just ghost IRL games mid-session usually due to social mores. Gotta wait for between sessions to do it. :P It's good advice to keep all scenes active and mobile. It also confirms the suggestions to definitely use block initiatives. I'm going to do it by averaging and rounding. If you have an initiative-changer (not just an immediate action or whatever) then I might have to apply it to everyone.