Not that I am in the market to buy a boat but the Aussies have a pretty interesting mono hull that rivals anything I have seen in the 21' range. Here is a video of it in action and it seems pretty impressive. There is 25 degrees of deadrise on this 21' hull which spans very high up the gunnels. I would think it would be a nightmare at rest but doesn't look too bad.
Not a SeaCraft but certainly interesting seeing such innovation in an offshore 21.
https://www.youtube.com/watch?v=qym9RACs76I