Upnorth, all I can tell ya is everthing I' ve read on the subject of shootin mechanicals through the mesh windows, have stated mechanicals will not work shootin through the mesh. I guess maybe they open up when the hit the mesh, I' m not sure. but fixed blades are supposed to work.
I don' t use the mesh windows, my eyesight won' t let me, but if your blind has the shadow gaurd, then unless you do an excessive amount of movin, the animal won' t see you.

about your brickhouse. does it actually weigh the 10 1/2 lbs that the catalog says it does, or is it heavier? and is it 5' square all they way up?