last year got a ff2 during turkey season harvested 3 birds and absolutely loved it. However went to Kansas opening 3 days during low temps and rain and ice. Sight fogged in he center and could not wipe it clean. Could barely see the dot on the edge of sight. Luckily I took a back up gun. Looked like the moisture was in the lens. After the gun warmed it cleared up. Kentucky season harvested a bird with it no problem. first day of Indiana season. Cool upper 30s and rain. couldn't see thru the sight and cost me a bird. Rain quit and later in the day sight cleared. I called customer service and they told me to send it back and they would replace it which is great customer service. My question is has anyone else had this problem ? I really like it and hope mine just has a defect.