Knock a hole in the metal channel so the strut can fit through, then slide a screw driver through the bolt hole to keep it in place. Next take a piece of scrap rope (3/8" braided seems to work best) and make a loop to catch the bungee. Start stretching the bungee using the hoist, you might find it easier if you spread the rope (black hammer in pic). Once you've got the bungee over the ears, release the hoist pressure, cut the rope and use the hoist to pull the rope free of the bungee. When you've got the strut off the airplane, use a piece of chain to hold the airplane up. Just be sure to use bolts and not drift pins.
It's nice doing it like this because one guy can do the entire job in about an hour. There is no real grunt work; the hoist picks up the airplane while you remove the struts and insert the chain and the hoist stretches the bungee. No lever to spring back, and no screw drivers to damage the bungees. It pulls evenly on both sides of the bungee. It's safe for you, the strut, bungee and the airplane. And it only cost you a piece of rope.
nkh