I was 15 and wanted to take my new to me tracker out on lake Martin after school one afternoon. So me and my mom drove to smith mountain boat ramp. I had helped my dad put our old boat in multiple times and thought I had it figured out. Got all the transom straps off and in clipped the bow hook and had plug installed. Started to back down the ramp and in my Rearview I see the bottom Of the boat standing straight up in the air! Look at my mom and she had eyes of softballs! Didn’t realize that the trailer rollers worked way differently than standard bunks. Luckily I was able to hook up the winch line and set the boat on the trailer. Need up trading that setup for a ruger #1. Guy that got the boat lost it twice on the ramp.