I'll take a stab at this...
we'll sail with up to 8 people. Weight does help when it's windy, and probably doesn't hurt too much when it's light.
- helm rather obvious... drives the boat, responsible for safety decisions
- main trimmer - trims main, makes strategic and tactical decisions. When things go wrong, he's the person in charge of getting it fixed (NOT the helm)
- pit - upwind, tails jib sheets on tacks. Downwind - takes care of guy and topping lift.
- Jib trimmer... does final trim on jib, adjusts as needed
- Spinnaker trimmer - trims chute
- Foredeck - sights the line at starts, helps get sails up, sets the spin pole, gybes the pole, takes the pole off on douses. Does all the magic up there that I have no clue about.
- Mast - jumps halyards, releases the spin halyard on takedowns
- 8th... holds the guy out as we're approaching a mark for a takedown, feeds the chute back to the companionway to stow in the bag (we set/douse into a bag in the companionway)
Thx Dennis - that is hugely appreciated !