I virtually match raced my buddy in H5.9sx for a couple of years (we sailed in a fleet though ) it was boat on boat all the way with no let up , if the wind was up we pushed so hard one of us would likely take a dip ,high speed closing meeting on tacks gybes , covering , forcing out ,fighting at marks , you name it , same as mono match racing , just faster and a **** load more spectacular and on the edge (if anyone had watched ) yes , close tactical racing yes !!!.
Unfortunately the reporters I heard during last AC had little understanding of monohull racing and often hadn't a clue to what was really going on , this didn't help the uninitiated spectators either .
Big vote for Multis