Yesterday I was reading Donald S. Reinhardt's intro to The Pivot method. I also read these exercises he recommended, such as; The Pivot System Buzzing Routine, The Jaw Retention Drill, and The Pencil Trick Routine. I'm only going to do The Jaw Retention Drill and The Pencil Trick, for now. I started them yesterday, and once again today. I do 3 sets of each, for how ever long I can keep hold them. I do it for 2 days straight and take a 1 day, break, 2 days straight and take a 1 day break, etc........ Am I doing too many day of the exercises, without a good rest day/s? I don't want to hurt myself, so I need to know before hand. I'm so far not really feeling anything from it, but I don't want it start getting worse! Has anybody else been doing any embrouchure exercises? P.S. I finally figured out that I'm a IIIB Type Embrouchure!