My wife will not let me buy a super Hogg High banker, but she didn't question it when I ordered two sheets of aluminum. I am a seasoned metal fabricator and have all the equipment to build one, but I am lacking some details on the header box like dimensions and how the reverse riffle works on the first sluice. How long is the drop down Zone and how long is the opening under the grizzly bars. This is all new to me I just joined GPAA and started prospecting a couple months ago and have decided classifing and panning is not a great way to process very much material it makes, my back hurt, so I'm gonna build a high banker and like the design of the super hog. If anyone could help me out with this I would greatly appriciate thanks. Matt