Benchrest: SEB or other high quality bags?

[Remander]

I'm getting a Cowan rest and own a Cooper rifle, so I figured it was time to begin looking at better bags.

I noticed good comments on the benchrest.com forums about SEB bags, and they look awesome and slicky, so that you don't need powder and such.

http://www.sebcoax.com/product.asp

The site claims: SEB rear bags are rock solid and features "micro" fiber cloth material on the ears, which is smoother than leather or cordura. You can throw away your talcum powder or silicone spray can since this material would give you more consistent "slide" between the ears and the toe of your stock, whether you shoot in a dry or wet condition.

Any experience with SEB or other bags that you would highly recommend?

Thanks for any help!