hey, just picked up a '98 Larson 186 fish ski boat. According to nada, the dryweight is only 1575 or 1625lbs. These numbers seem unrealistically low for an 18' bowrider. even an 18 bayliner is closer to 1900lbs. anyways if the boat is only about 1600 lbs, would i need to look for the lighest...