Same configuration, but move the genoa cars forward until the sheeting angle looks about right and telltales break evenly. I have a simple forestay (no Tuffluff), so to minimize the amount of time I have no headsail, I’d run new sheets (I have two pair) then swap out as fast as possible.
I too use hanks on my foresails, and I was thinking about that either. You can hank the new sail on the bottom, them run new sheets, then drop one and hoist the other. Does this sound right to you?