I just bought a 1992 23' Walkaround W / 200 Yamaha and will be trailering it 800 miles ( NC to RI ) in April. An old Parker brochure I got with the boat says the boat weight is 2700 lbs. A new Parker brochure I just picked up says a new model 2310 DV Walkaround weighs 4288 lbs. Is this correct, almost a 1600 lb. difference ? Also looking for advice on what's best to use and placement of hold downs while trailering. Thanks, Paul.