Has anyone been able to save both after getting the Eldergleam sap? I've only been able to save one or the other ... currently out of ideas and running vanilla Skyrim on PC.

Thanks!

Nope, I haven't been able to either. MAYBE if you reverse-pickpocket into them high-level armors they'll survive, but beyond that bloody spriggans always managed to kill one.

How about you don't attack the Eldergleam? Pray to it.