Anyone have them?

I picked one up from Krebs a couple months ago.  Definitely and improvement for my old eyes over the OEM sight.  It weren't cheap, but IMHO it was worth what I paid.

Any others? I see MOJO and Williams makes them too. Any reports on those? What makes that kind of sight better than the OEM AK rear sight?

I just bought a williams sight from cheaper than dirt.....Fired about 100 rounds through my arsenal slr105 and i'm  still trying to decide wether I like it or not.I guess I need to get used to the new sight picture.

Quoted: Wms does not seem to be a sturdy as mojo or krebs. The eye just naturally centers, so while post/notch are plenty fast the aperture accuracy is best. But for $60ish on a peep, many prefer a $90ish 4x24 scope.

Thats what I was thinking. May just put a 4x or 6x scope on it.

I was reading an article the other day about peep sights and they natural tendency to center things in a circle.  The article mentioned that H&K uses a circle-in-circle with the front post being fixed in the front circle.  After that I deliberately checked myself to see if I was centering the post in the rear circle, or the front sight wings (2/3 circle??) in the rear circle and danged if I don't think I was doing the circle in circle thing.  So now I'm thinking I need just a slightly smaller rear aperture to make sure I don't pick up the front wings in the rear circle.
Note: my front post is set slightly to the right side, so it's not centered between the protective wings.
For anyone else with a peep, is this something anyone else has noticed?