Hey, the most effective therapy I've used has been really recent- through a website called [www.speakforless.com](https://www.speakforless.com) . i also have a low to mild stutter, there devices work well in important events like interviews BUT more importantly the free techniques they give you after you buy a device WORK SOOO WELL. ​ It's not just normal techniques like you would imagine, but also quite psychological