Extending from the vehicle
From a suggestion from another O'Day owner, this is what I did for my O'Day 25 trailer.Rather than extending the trailer, I extended the hitch from the vehicle. I took the hitch out of the receiver. I then got a 5' section of square steel tubing the same diameter to fit inside the receiver. Then, I got a 5' section of tubing the same size as the receiver.After drilling all the appropriate holes, I put the smaller section in the receiver on our tow vehicle. I then put the larger section on the smaller section. Finally, I attach the ball to the larger section. This extends my hitch 10' (approximately) behind my van. Leaving the dolly wheel down on the tounge of the tralier, I attach the trailer to the hitch, back down, and load up the boat. I pull it straight out, chock the wheels, remove the extension, and hook up normally.It's worked every time. The guy that suggested it to me has been using one for 10 years.