Thanks for the replies. I've done multiple dives a day in 84 degree water without a wetsuit and been quite comfortable. On another trip, I was glad I had my 3/2 fullsuit for 80 or 81 degree water. So for me, I know those few degrees make a difference. Maybe a shorty is the way to go - would certainly be easier to take on and off out of the back of a truck. I don't actually own one, but am considering purchasing an inexpensive one for this trip.
James
James