Oly Questions..i know yall have answers

Welcome to BT and congrats on having 2 sprints in the bag. As far as a wetsuit, I'm not sure what lake temps are like in September in Georgia, but I'd wager that you'd be fine without one. Anything above 65-70ish and you'll be comfortable. A wetsuit will make you faster and you'll obviously be warmer, but it's not required. According to USAT rules, you can use a wetsuit up to and including 78 degrees. You can also wear one between 78 and 84 degrees but you wouldn't be eligible for age group awards.

 As far as goggles you really just have to keep trying different pairs. Go to a sporting goods store and try em before you buy em. The quick test is to put them on your face without putting the strap behind your head. If the suction keeps them on your eye sockets, they're water tight. Everyone has differently shaped faces, and I have a pretty serious beak, so I've eventually found that speedo vanquishers fit me the best.

Cut off times vary by the race, but you can most likely expect something along the lines of an hour to an hour and fifteen minutes.

Best of luck!