Feedback on the new RDT motion

Hi folks, I am quite interested in developing the RDT/ergonomic mouse motion and your observations would really help me find the way because most of the time I feel like I’m doing either wrist/forearm or elbow motion. Also, I’ve been struggling with my hand positioning because the volume knob on my Strat seems to be in the way. what do you think? Finally, in the examples, I am playing the tremolo at around 180bpm 16th notes, and I feel like I can do better but my results have been a little sloppy so far. Thanks in advance, Steve