I stuck a limb tip(60" bow) through the Barronnett Grounder 350. So I also got a Big Mike. Both are very good blinds for the money($105, shipped, from an internet source for the Big Mike). I'm keeping them both, but each has it's shortcomings. The G350 is roomy but not real tall. The Big Mike is taller but has a small footprint and I am almost literally against the back wall when I extend the bow and arrow in front of me. And.....it's NOT tall enough to shoot while standing, unless you are very short. And if you are short, the windows are a bit high to shoot while kneeling. Forget about having a second person in the Big Mike, unless they are small and not hunting.
If you cant your 64" bow, and practice from it so you stay conscious of the roof, you'll be fine. The same limitations probably apply to Double Bull and the others. However, if I were looking for my first one and had the money, I think Double Bull is probably the best on the market, because of it's versatile windows.