dont worry about numbers like 21 or 24 degree deadrise, it doesn't mean much. The softest riding boat I have ever been in had a 20 degree deadrise at the transom. That was a Formula 21. Real world is a better gauge than a magazine article.
Been in most of the boats mentioned here already so thats where my statement comes from. Was definitely not impressed with one of the boats in the "6 metre shootout" While it behaved well, it was very hard riding and pretty wet. Just like a heavy V19R haha.
The 585R is extremely dry riding in a following sea. You could claim it to be wet in a head sea, like most mono's driven hard with the bow down.
I am not including cats in my statement because I havent been in any 6 metres or under.