Trap, I may get a blast from some of the diehards here about my storage practices but I also store a GL1800 Goldwing, Yamaha 700 Rhino, two Skidoo's, Honda snow blower etc.. and I have yet to fog the cylinders in any of them. Usually I change the oil, add fuel stabilizer and wash them. As for the Seadoo's, I store them tilted to the rear to drain off any water that may hang up in the exhaust but have never flushed with antifreeze. Never had an issue with them. It gets very cold here on the east coast of Canada and I store these in an unheated garage with a battery tender connected to each. In the spring I do a visual inspection on each, put them on the trailer and bring them to the cabin.
Jim