Paul
I have loaded mine a few times on the deck by myself. Up is no big deal, just walk beside the bike as you are loading and keep the front ski on the super glides. When you lean the bike a little to the centre the track catches the wrungs on the ramp and you will have no issues with slipping. Unloading is a bit of a bitch but I have done by myself as well, just have to line the bike up in the superglide tracks and they will keep the ski straight and pull it down from the grab bar at the back of the bike. The transition between the deck and the ramp can be a little tricky (this is where the second guy holding the ski straight helps) but once you are past this point you can quite easily hold the balance on the bike and slide it off.
Stu