I'd like to surf this Sunday in NJ, but looks like the water temp (35?) and air temp (high of 27), may be colder than my R3 can handle. I am fairly resistant to cold, but I think the R3 is rated only for mid-40's (which is about as low as I have used it). I don't want to drive two hours only to find out I am woefully under-covered. So, would I be crazy to try an R3 in NJ on Sunday?