John,
I hear what you're screaming about being a big guy. Go to Killzone Outfitters. Buy their 2 man chair. Excellent quality...very affordable...truly a diamond in the rough. I bought 2 of the one man blinds from another manufacturer and had problems because they are only rated for like 250. I weigh in at 275 and they did break. The 2 man solved those problems, and, the one from Killzone has a ton of room in it. I used it deer hunting, and never had detection issues; that being said, I have not tried it for turkeys this year, but, I think it would work well. Good luck my fellow hunter!