It is not for the purpose you are describing. Mr. Sanford is the expert but I have built 5 and it's what I hunt from 90% of the time. I have used it to float decoys across a pond and when I have been stuck in the mud I have used it to get myself out.
I anchor the boat in good water and clove hitch a line in the rear. This allows me to pull the boat back to me. I only do this if the bottom is shallow and don't want the boat high and dry.
Thanks Steve I added a 4" back but I do need to add some more a second hinge level would work great. I will be in tuckerton I called today to try to get the table next to yours I have a lot of equipment I need to part with.
I close the top up with grass mats on sticks that have to be reset after we shoot. The more I cover the top the better I do. If I had more angle on the blind and it was 6" higher it would be more effective. It also makes us sit on milk crates which is not comfortable after about a hour.