In 20 years we have only weighed once and that was nationals. The set up was two scales and a set of beach trac wheels. Pull your boat up on the trailer mast up and pull it on to the "tare" beach wheels. Up the ramp on to a pair of scales. They had one guy hold the boat and make sure it was balance and he called when to weigh. They added the weights. No one complained and those that had weighed before had very very close to the same numbers. They then put the boat back on the trailer and off you went. All in all a non issue. JMHO, YMMV, Ricardo.