Hey guys. I've had my F-75 for over a year now and haven't had many problems with it. It's one of the first ones on the market and of course don't have any of the upgrades or updates. I was hunting Saturday and we were out early after it had rained. Well my unit didn't get wet but with the humidity, the display screen fogged up on the inside. I couldn't even see the display after a while. The machine still worked but I had to go by audio. So I'm thinking of sending it in for the seal update if nothing else. Do you guys think it's worth sending in for the update? What all are they doing with them now and how do you go about sending one in? How long of a turn around time?