The Cascade performed well in waves, wind, and rapids. The only negative is that the thwarts were badly placed for kneeling and I moved both of them closer to the center of the boat. Now I can kneel on or behind the rear thwart and also use it as a footbrace when sitting in the standard rear seat (put it 28 inches forward of the front of that seat and 1 inch lower than the gunnels). Similarly, I moved the front thwart back so the bow paddler can kneel behind the front seat and lean on the thwart. Moreover, this relocated front thwart makes a great grab on the portages, whereas it could not be reached in the original position. Moving the front thwart back required adding a small thwart about 2ft back of the bow for gunnel stiffness (and also for constraining a bow float bag if used).
My rating is a 9 coming from Wenonah and a 10 as modified by me.