When sailing in large chop, if the boat isn't lurching forward after hitting a wave, something needs to be changed in the sail plan. Power down low with leeches twisted off is the direction one should take the sails.
Sailing Instructions are reissued from time to time. Changelogs issued for major updates.
Initial change log, covers revisions dues to RRS changes, course changes, Sunset rule scoring and clarity revisions.
Issued for racing. See changelogs 1 and 2
Re-issued to change handicaps and clarify finish
Mostly section 14