I'm interested in this topic since I'm headed down this road myself. OJ: I see that you've bought the materials but I'm unclear how commited you were to this embroucher. Did you try it for a while and then find it lacking? Did you dabble (experiment) without committing to it? Personally, I'm not concerned about the "who uses TCE and who doesn't". All marketing materials are always suspect. I'm more concerned with : does it work? Here is my limited experience with it. I'm a comeback player, so my committing to it is less a risk I guess than someone who's livelihood depends on it. I had a lesson with Jerry last Friday. I have a lesson with saturday with Bahb. After my lesson with Jerry, I wasn't sure. It was so odd feeling, compared to my old method. And my tone sounded awful. I worked on it over the weekend and the first thing I noticed was that endurance was no longer a problem. It seemed like I could play forever and not get tired. Previously, even a short practice session was filled with lots of breaks and my chops just gave up after a relatively short time. Not a problem here. Also, the preasure and pain I felt with my crooked bottom teeth digging into my lower lip was also gone completely. My range went way down, not that it was great before hand. I could sort of hit a high c occassionally, but high G was the highest note I could hit consistantly. After the lesson, and using TCE, I struggled getting to a middle C on the staff. By Monday and definitely Tuesday, my tone was about 80% back. In fact it was a more interesting tone than I had before and much more flexible. My ability to quickly run through the chromatic scale improved dramatically ( I often had a blank spot between the low c and C# where I'd have to restart at the C# since I couldn't make a smooth transition between the two notes). That problem disappered. The endurance thing continued to amaze me. I just wasn't tired at all, no matter how long I played and I had to remind myself to take a break (I don't think my family is happy with this developement ). My range is now starting to come back as well. E above middle C was do-able yesterday and I'm sure that will improve as well. I'm looking forward to my Saturday lesson.