I have one. Found the Indian Creek .555 put a nice pattern up. One thing though. Choke has a large gap between barrel and exterior of choke. Looks super sloppy. Looks to seat completely inside the barrel. Will need to paint it as the stainless is visible in the gap and shines when light hits it. Not pleased with the look or the fact that I have to paint it. I hear Carlson's TSS put up a comparable pattern. Will try that one to see if it does. Both Federal and Apex 9's pattern great and similarly.
Here are pics of my ugly choke gap.