I shoot with alot of really good clay shooters in trap and skeet.  The best of them that I have observed were all shooting factory chokes or equivalent.  I asked similar questions.  They all said that none of them were good enough to see any difference in the various gimick chokes out there.  they were all shooting flush mount chokes.  Carlson has an excellent reputation and I think they are fine.  I went there as I wanted stainless and I thought they looked more durable than my baikal factory chokes and I wanted actual skeet chokes.