Well honestly, thinking about it more. Later would probably be better but the reason for thinking of the change to answer your question is more or less about the dogs.
Our shorthair gave his all the first day (it was an all day ordeal of water retrieves, and he wasn't going to stop) however even after dragging him back to the house he was acting lethargic, and the neopreme suit we had on him (because it was to loose), took away all his hair etc and well he had to rest a couple days. We couldn't keep him warm enough.
It's more or less to take care of the dogs, if it was a little nicer out it's obviously easier on them however that doesn't exactly work as far as weather and ducks now does it. =) I think we may have come up with some ideas to keep them warmer longer in between retrieves. Plus I would like to do field hunting this year.
So all in all it's just I am concerned for the dogs, I couldnt care less if I can't feel my body as long as I have ducks flying around me.