So I'm mapping out a project to make some bag type panniers, similar to the Ortlieb classic rollers. My questions is in regard to the attachment device. I have been thinking of three options:

One: Ortleib set up from their spare parts list

two: Arkel Hook Kit http://www.arkel-od.com/panniers/acc...es/hookkit.asp

three: create a hook kit with things I find at the local Hardware store.

It seems to be that the Ortleib bags will attach and stay put for the most part. The Arkel style with bungee seems like it would flop around. Am I right on that?

Thanks