Correct me if I'm wrong, NBC suits are only used for a couple of days and then thrown away after they are opened from the plastic bag. Maybe your MOPPsuit is different. All I know is that I bought one of those cheap suits in a magazine a few years ago and it didn't work nearly as good as the scent-lok. I once was like you but after seeing what this stuff can do in the field, I changed my mind. I would never go bowhunting without it ever again. Some say it dosen't work, others say it's not scientificlly possiable, but somehow deer don't wind me when they are down wind and I'm on the ground. Is it by chance that you kill 3-4 deer a year from the ground. I doubt it.