I really don't take my blackjack out in rough water. Unfortunatley every duck boat has it's pro's and con's. I also have an Estuary built by David Clark that I use in the bay and big open water. The pro's of the estuary is that it will handle really rough water with no problem. The dodger dave built on my bought keeps water out of the cockpit. The displacement hull on the estuary together with daves dodger design makes it a really sea worthy boat that will get you home safely in the roughest weather. Now when I hunt shallow waters the estuary's hull will drag on the bottom making it impossibly to drag it. The blackjack with the motor up will slide across 3 or 4 inches of water. The estuary fully loaded with a 15hp will do about 11mph(gps tested) and the black jack loaded up and with the same motor will do 21mph but with two men in the boat. Duck hunting is like everything else, you need the right tools for the right job. For example, a multi tool will do the job but a tool chest full of tools will be easier to work with and have a better end result.
I really like both boats. The Estuary is an awsome boat that I will never sell. Dave really thought this one out when he designed and built it, but it's slower, heavy, and drafts more than twice the amount of water when it's loaded up. I wouldn't change anything about the Estuary, it's perfect for big open water. The Blackjack is fast, lighter, and only drafts about 4 inches of water loaded up. The only thing I would change about the Blackjack is the cockpit area. I would run shelving on both sides the run the length of the cockpit. I would also put a hatch on the bow to the space underneath. It's a waste of space. Right now I put my decoys on the bow wehn I'm running the boat. My oars, push pole, mojo poles and other gear lay on the deck. I step on it all the time and would like to see shelving on the new boats.
As far as blinds go. I just cover the boat with fast grass camo netting underneath. I run a 2x4 the length of the cock pit to keep the netting and grass from falling through and my dog sits on the bow.
Jeff if you consistantly hunt rough open water I would look into an Estuary. If you look in marylands craigslist there is one for sale, Boat motor and trailer for 5,000 or contact Dave. Keep the blackjack for calmer waters