HITS: In the old Double Bull, the pole hubs were weak. Primos addressed this by introducing a deeper ball-and-socket design, and the backdoor poles have been beefed up, too. The deluxe model also features sidewall pockets, and the window attachments are more secure and easier to operate one-handed than they were before. Likewise, the shooting window opens and closes with a draw-cord tension system, and after using it, you'll want to set fire to any blind that uses Velcro or loud zippers. The doors are zipperless, too, and hold tight in stiff winds—which I initially doubted. The blind material—a cotton/poly blend—isn't waterproof, but it's much quieter when pelted with rain or acorns compared with plasticized waterproof blinds.