The Viper is an interesting boat and must be being looked at by many of the lighter F18 crews, it already seems on a par performace wise with the F18's, has a better handicap and best of all, can be beach handled with ease by two crew.
I have to say that the Viper can be handled by one person on the beach. Yes, if the sand is a little soft, or there is a nice little hill that I have to go up, It's a little hard to push it by myself. But most of the time, I have no problems handling the boat by myself. I weigh about ~170lbs or ~80kgs for you metric folks.
Mike