I've worked with this off and on for a couple days, and I've read the other reviews. I think maybe
people equate Rubber Bands with 'easy'. This is not 'easy'... but it IS doable. I can hit BJ2 about
90% of the time. The setup for BJ3 is knacky, but what about sleight of hand isn't? I'd say you need
some of Joe Rindfleisch's bands, but if you're doing rubber band work, you should have them anyway.
This will take some practicing to get it to work, but the payback is startling since everyone knows
how to do the one jump, and now you can do 2 or 3, or 4 if you're industrious!