"Hold your course!" was eliminated in the last revision of the rules, almost four years ago. It went the way of "mast abeam!" <img src="http://www.catsailor.com/forums/images/graemlins/grin.gif" alt="" />
So what is the appropriate response?
"Hold your course" !
It no longer has a meaning as far as the rules are concerned. But it still may help in the protest room.