I hope this finds you well. I have patterned this gun with the stock Turkey choke, Sumtoy & Patternmaster. All three chokes shot well with the Sumtoy and Pattermaster shooting the best. The Sumtoy and Patternmaster both shot very good groups with multiple load types. I have never had to use the "Patternmaster" customer service sbut understand its good. I did speak with William at Sumtoy directly and he worked directly with me to make a choke based on what I was trying to accomplish in patterning. For this reason, I would say Sumtoy because customer service means a lot to me.