Over the years from age 4-roughly 10 we’d used several. We’re in NY so through Montefiore in the city and several private practitioners...one was even a stutterer and that was a big gamble but she came highly recommended. It didn’t work. I feel as if he wasn’t invested and that’s why it was never successful. When we work together he sees the results it’s just a matter of a pre-teen being consistent....#oxymoron