Fascinating discussion.
my observations, on most surfaces, in light wind the sailor that gets going is the sailor who pays attention and SAILS the yacht, Pointing the yacht down wind and holding your hands up only works on water

Ive watched people oversheet , undersheet, point downwind, sit in soft sand, push onto a soft sand bank...............................
. It really comes down to practice and experience( gained by practice).
Blokarts have a different sheeting /downhaul system which when combined with thier skinnier,softer masts, cleverly overcomes some of the "downwind dilemnas" which traditional landyachts(TLY) face. . A great asset when being used by beginners and/or on narrow sailing venues.
Its fascinating when you put someone whos experience is from sailing a blowie into a TLY. They just point it down wind and sit there obviously thinking " what a POS, how does it go so fast when the other bloke sails it?"
What makes it hard for Lake Lefroy sailors is that you cn sail on smooth salt in 3knts of wind upwind. often the yachts will head out into the distance upwind for 5km without turning around to check if the wind is strong nough to get them home.
after a few hours, theyve pushed back straight downwind instead of trying to reach and get some speed, all the time cursing that paul day fella whos happily zooming around near the yacht club in the distance.
not having a long skinny strip to sail on makes it hard to understand the Dynamics involved.
Lake Walyungup has its own issues , like knowing where the windshadows are, the soft gravelly sand patches . Muzza will usually draw most of the obstacles on the course map. It is a surface where there is no such thing as enough practice, hence it become so hard to beat the locals.
The lightwind direction is also a messy , flukey wind that is a waste of time sailing in , so the locals have the sense to let the seabreeze kick in(18-22knts) before they race. hence no need to push and a good reason for seatbelts to be worn at all times. theres certainly no need to get out and push off the line.
The boys are all on the well ballasted side as well, eh Baz