I'm not a nautical engineer like some here
but some of the advantages of the Seacraft hull is that because the longitudal steps decrease in deadrise from the center of the hull and out, you get a cushioning effect as the hull goes in the water with each outboard step flatter than the inside. So the advange is that you have a deep V center step but a more tame outermost step to mitigate some of the roll of a DeepV. The disadvantage is it still takes a lot of HP to get this hull (like most other deep Vs) up on plane and to remain on plane.
There are more than a few 20' boats with 90hp outboards that do OK but you'd need at least 115 on the 20 SC. The odd 23 footers have 175s but a 23SC is going to want 225 or more...