I don't know about the cz7, but it looks like a comparable design to the 590 which I own. The boat handles quite well, and the in rough conditions video makes me wonder if the guy driving was smoking crack, I think he could have trimmed the nose down a little better. I can make my 590 catch air off of fairly small waves like the cz7 video (i wasn't that impressed with the seas he was in, looked pretty flat to me), but I can also trim the nose down so it will stick at speed. One thing I have noticed when I compare my 590 to other ribs of the same length or even longer, my tubes are much larger in diamater and when really rough the nose is extremely hard to push under a wave during a stuff. This is good in the fact that once full of water boats become nearly impossible to bring back up to speed. The downside is the wave peircing capability blows, and everyone/thing in the boat is thrown forward voilently. The boat however isn't worth the cost for general toy use.. If I was going to spend a quarter million on a boat, it would have alimunum chambers, a cabin, a small galley, a small head and come with a bubbly blonde with big tits.
"Ribbed, for her pleasure"