RE: Ground Blinds
I have a Matrix. For turkeys, just set the thing up and hunt out of it. It doesn't matter at all, well, as long as you're in an area w/ birds. That always helps.
For deer, leave the net down and brush the blind in a little. ESPECIALLY the roof. You've got to get that hard horizontal roof line broken up. Now, some people say to set the blind up weeks in advance so the deer "get used to it." Now, I'm not so sure about that, I've set mine up and had deer walk right by it an hour later. Just make sure you break it up and set it up somewhere the deer won't be surprised by it...ie, on a bend in a road. If they walk around the corner and BLAMO.....! there's the blind, they're gonna bolt.