This is one of those great jobs for early one morning when the
wind is zip, zero, calm, and totally non-existant.
Then you can sort it out on
deck, slip up the
mast on the main halyard and then watch as the chute is hoisted and see if it comes up right, then watch as the snuffer is raised and see if that works right and sits pretty. Explain what you want of the person on
deck, and make sure they don't wander off. Obviously the snuffer has to sit above the chute, and the block to raise it must highest. Also check to see if theres chafe, or loading on one part or another. You may not have used this type of sail much before, but you will have a better chance of working it out while up the mast than an 'expert' on shore.
Experiment to see if theres another way to do it (keep checking the breeze hasnt come up!)
You might take some sticky tags up with you and tag the lot and mark them so when you pull it down you know each piece.
Back on terra-firma cut all that tape off the strops, hiding the swages, and off the knots. Whatever is under there it must be crook so have a look. I'd be cutting all those daggy ends out and bring it down to fresh solid
rope. The whole thing looks a bit unseamanlike (oh, my god I hate saying that word! LOL sounds like I'm a grumpy ol sea dog) but prolly just needs a few minutes sorting it out and making it nice

They are the fun jobs!
Mark