DJ,
Yes it's very similar. However the musicians are responsible for
bringing their own instruments. Therefore, they are the ones to talk
to about using their equipment. I (for one) don't mind if people play
on my set, as I know I beat the crap out of it and it hasn't broken
yet. If I'm not playing my kit, it's fair game as far as I'm
concerned... However, if you do sit down and play it, you will be
responsible for breaking it down and hauling it back to my car at the
end of the jam session. :) j/k
Luc