I'M MESSING AROUND WITH WORKS BEST ON MY MALIBU I HAVE A WEDGE AND TWO SIDE SACKS BUT WITHOUT SIX PEOPLE IN THE BOAT I'M NOT PLEASED.SO MY WIFE AND I ARE GOING OUT FOR THE WEEKEND AND NEEDED SOMETHING CHEAP AND FAST FOR BALLAST.SO I WAS GOING TO FILL AND HIDE A TWIN MATTRESS UNDER THE BOW,WONDERING IF IT WOULD BUST UNDER PRESSURE.
I used a twin waterbed mattress in my ski locker up until this season. 4 seasons of use, no problems. Air mattresses are much thinner material, and won't last nearly as long. I'd be surprised if it made it thru the long wknd. See if there are still any waterbed stores in business in your area, and go get some tubes or a twin mattress. It would probably be about the same cost as the air mattress.
Also, your wake will be a lot bigger and cleaner if you turn off the caps lock.