Many marathon stock boat racers paddle the Minn II. Very similar is the Grasse River Monarch in graphite. The Monarch is said to be a little more maneuverable as well as slightly faster. Both are very stable 18.5' trippers and both do well in races. I've paddled both but under different conditions so I can't say which I like better - but I do very much like them both. Wenonah makes the same Monarch model as well, in kevlar, but it is not in their catalog, being available only through outfitters, such as from macscanoe.com. That's the one I own, and my daughter has the Minn II.
The photo below is of a somewhat larger GRB woodstrip voyageur canoe negotiating a short section of rapids on the Yukon. In rapids or heavy wind blown rolling waves, even this big guy tends to float up over waves instead of plowing through. Note that the #1 and #2 paddlers are sometimes paddling air, sometimes are submerged on the downdrop. Thank goodness for the spray cover. But this boat is probably more than what you were looking for.
The photo below is of a somewhat larger GRB woodstrip voyageur canoe negotiating a short section of rapids on the Yukon. In rapids or heavy wind blown rolling waves, even this big guy tends to float up over waves instead of plowing through. Note that the #1 and #2 paddlers are sometimes paddling air, sometimes are submerged on the downdrop. Thank goodness for the spray cover. But this boat is probably more than what you were looking for.