In some OD classes, you can't even change certain parameters of the rig between races.
Dynamic Tuning ? - so that is like when we are late to the start, rushing to get out there in sloppy chop, and I have my mainsheet trimmer drive while 3 of us try not to lose any tools overboard while fiddling around with with the leeward shrouds
is it getting looser or tighter ?
Where the ring ding go ?
NO you cant tack - wait !