I think the main difference between BASE in bungee is responsibility. In Bungee (if you set it up) you get to think, "oh shit did i hook this up right" and in BASE "oh shit did i hook this up right, is it packed right". Also YOU have to deploy the parachute and YOU have to land safely. A bungee you can relax after you step off--in BASE its not over till your feet hit the ground. Not to mention correcting for 180s or other nasties. Despite the intensity of it you need complete control...