[bigbrother]

bow length is definitely the critical factor if you're shooting a long bow. also, the thing you need to look for is the size / number / location of the shooting ports. some blinds have a big viewing ports but if you're hunting deer from them, that's a minus not a plus. Hunting deer means you won't be able to take advantage of having them open any way. The matrix from double bull is the best I've ever seen (I don't own one) But don't overlook blinds with shoot thru material covering a big window, the deer won't be able to see through but it won't hinder your ability to see or shoot. It doesn't work well to film through however. Pay attention to fabric, nylons and coated exterior shells are BAD....even though you're inside, if the wind pics up you may run into branches etc scratching against it. Dark interiors are a must, black is best. If you do choose one with a black interior, wear black shirts, hats etc when hunting deer. It's actually better than camo inside the blind. My last piece of advice is that even though the double bulls are expensive, I truly belive they are worth it. From the ease of set up / tear down, the fabrics, the interiors, they are designed to hunt out of. My next one will be the Matrix, but again, your bow length and shooting style will determine whether or not that's going to work for you.