Newbie, trying to decide which 2 year old pair of skis to buy. Looking at RXT supercharged and Yamaha HO Cruiser. Plan to use in big rivers going miles and miles, so I want to minimize risk of breakdown. There is alot of talk about Sea Doo problems with internal washers. One guy has advertised one at 80 hours factory replaced engine. Dont blame him for wanting to sell. Just how common is this? and does the Yamaha have its own problems?