AO. I know them pretty well. They have done plenty of work for me so I have lots of first hand experience on how they will go the extra mile, and then some, to make sure you are satisfied. They keep lots of parts in stock, which sometimes makes it expensive for me to visit them. On the flip side of that Mark has more than once told me "buy well, but don't over buy" and wound up saving me money. I cannot say enough good about them and you will find lots of other guys here on the Hide who feel the same way. If you like, I can send you pics of their work. I have both full custom builds and modified 700s. Their quoted build times are what they tell you and communication is excellent. Also, they are avid shooters so they use what they build and sell.