JPW Super Cutthroat 2

I'm a cat newbie considering getting a Super Cutthroat 2 from Jeff's Plastic Welding (19" tubes, 14' long). I'll be on smaller, mellow rivers- Class I and II. Wind can be a big issue so I'm trying to balance load capacity with aerodynamic drag (for lack of a better term). By the same token, there will be shallow water to contend with too. Most of the time I will be solo, with a total weight of about 400 pounds. I might have another person occasionally, so perhaps up to 700 pounds. I'm in AK...

JPW Super Cutthroat 2