Loaded by myself, but I have always watched my boat on the trailer very close as I leave the water, started up the ramp and had forgot to snap the little winch catch. boat slid back about 2' but I seen it ... backed back down and done it all again and right this time, but if I hadn't been watching the boat would have stayed and me and the trailer would have come up the hill....... all most a Beagle day for sure........