I own 2 Double Bull Blind - Matrix 360s.

Why - it is just the material and craftsmanship as my buddies went cheaper and bought thecheaper knockoff tho they don't have the 360 capabilty but windows. I ahve helped them repair each blind several times - that material just sucks and is shiny and is just junk.

Now I am not a Pro-staffer forDB but I have found no other blind to match the dependabilty. I have used several other blinds. The window straps and support rods of the DB do not get in the way. You just need to be aware of them. Rarely do I use the full screen over my openings but willuse the screen as I position my viewing to screen only on the sides but leave the front wide open. Now my opening is only wide enough to cover my shot and I do use decoys alot but I position those usually less than 10 yards in front of me. The DB comes tih a video and shows the window opening as I use it. I just tuck the screen mesh up out of the way.

Now spooking birds in your other blind - if the bird saw movement the inner chamber was not dark enough. I hardly ever use the full 360 fiewing of the blind as I want it dark in there as psossible and no back light so no animal can see any movement. You are best to dress in black while in there but it is not all that important. Camo colors work just fine and rearely do I use a head net. I think the reason those birds spooked is what you surmised - they saw movement or heard soemthing out of the ordinary. If they saw movement did you have back windows open so actually they saw just a shadow that was not common? Think about that.

When I do get birds in I not going to shoot or are hens I practice putting gun or bow up - sighting in and then putting back down. As with anything slow methodical movement is the key. If the bird is wary or looks nervous I just freeze, let he bird settle down and then try again. Is really good practice and then you know just how much you can or can not get away with. I ahve yet to have a bird spooked while I was in the blind and I have beenusing them for 4 years now.

This year I had a Tom who would not come to front but was in range on the side.......I used the silent make the window bigger feature of the blind - slowly opened the side large enough to get my shot and then dropped that bird.

Now three people in the DB blind is a stretch - two can sit in there just fine - but three IMO would be a crowd.

Oh one other thing I do - the blind is square - so I point one intersection corner of the square facing out and then sit back in the opposite corner intersection side of the square. Think of it as a diagonal line drawn from corner to the oppostie corner.

This does two things for me.
1. Gives me the biggest dimension to sit and stretch out
2. Puts me int he darkest corner

One other thing on morning hunts - place the blind with window facing West and in a back drop if you can so the sun comes up from behind you. Keeps you in the shadows much longer and hot days much cooler - for evening hunts reverse this.

I also use a Rack-Pack to carry my blind an decoys. Very nice pack frame that once the blind is off the frame and set-up - the pack frame becomes a very nice high back chair and get this - with a head rest! Many a time since I am closer to 60 and am not seeing any birds - I take a nap! That was also a good investment for me. I can travel great distances - have both hands free and carry chair, blind and decoys comfortably and I place this Rackpack right over my vest. That way if I want, I can run and gun and then come back home to my base set-up to rest.

And lastly - the blind is great when it rains - you stay dry! No matter how hard the down pour or how long!

JW