I think listened to this podcast on YouTube, he seems pretty fluent but when i looked up his name on google i only found a website with a poor design there was a prerecorded seminar you have to pay 200$ in order to get access to it. Its made for parents with kids who stutter on how to deal with it. I haven’t found anything related to the method that he talks about in the podcast and how it’s done or at least the pricing. It looks a bit greedy that throughout the 1 hour+ podcast he didn’t give us a single hint about his approach.