need clarification - when a recipe calls for hop addition at "first wort hopping", I am assuming that means adding the hops when the AG mash is complete and at the start of the heat-up for boil. Is this correct?
Yes its usually done with a traditional mash tun. I do almost the same thing by adding them as I lift the grain out of the boil kettle in BIAB (so starts when I fire up the burner).