I got to test my new choke from Sumtoy customs today, and to say I am impressed would be an understatement. I called and spoke with them on the telephone and let them know that I was looking for a good 40 yard and in choke to shoot lead 4's and 5's out of my 835, and boy did they deliver. The choke is beautifully machined, and the customer service was great. I am not sure how to post pictures on here, but was able to throw an extremely even hunting pattern at 40 yards that is still dense with little to no gaps with both the 4's and 5's (3.5" LB Xr). If anyone is in the market for a new choke, I would strongly recommend giving sumtoy a call. They will take the time to talk with you and find out exactly what you are looking for.
I just ordered my 2nd choke from him. I liked my first choke just think it was a little to tight for me. I'm shooting tss 9 I went from 655 to 670 which is what he recommended.
William makes them as good as you can get them. Absolutely second to none.