The jumbo is a very good bag, but you've got to know exactly what you want to do with it and what you want to carry in it, because the bag can be a little small if you carry stuff like a book,clothing or something like that in it. But for small stuff it's great.

I chose the S-type because I'm left-handed and don't CCW. If you're right-handed, I would just get the regular-version.

The bag doesn't feel to small or large, it doesn't move around to much when walking and if it does, you just attach the belt-loop and it's not going anywhere.

A review of the jumbo which you'll probably already know: http://nl.youtube.com/watch?v=So5iQoQQswg