I have been in your shoes and have probably the worst combination of work, hobby and competitive interests. I have off and on competed in handgun sports for decades now. About 2005 I started to develop chronic overuse injuries - sore wrists, trigger finger (multiple digits), golfers elbow and tennis elbow. Not all at once, but after about 2009, they began to occur in succession. For some time, it seemed like as soon as one injury subsided, another arose. As the joke goes, when you tell your doctor “it hurts when I this <...>” Doctor: “Well, don’t do that”. I tried to comply, laid off the appropriate activities for a few weeks at a time and gradually returned. Next up: torn rotator cuff. 14 months from surgery to 99% range of motion, but only about 5 until all practical and usable motion was restored. I was able to ride after 6 weeks, drive at 8 weeks after surgery. But after this and the 2nd shoulder repair (other side) the tendonitis returned.
Next, after a (cursed) heavy snow, I accidentally hit one of the tendon sheaths of my left hand, right where I’ve had chronic trigger finger for years. This convinced me to get the surgical repair. it’s in and out, and you can still use your hand to type, etc. The doctor boldly proclaimed: “This always works”. It did; no more issues with my fingers swelling and locking during opening / closing. Unfortunately, the stiffness continues to this day - 18 months later.
What does this have to do with buzzing?
I had the same problem. I had the throttlemeister on my ZX11 and I needed it. at times my hand would fall asleep in 10 minutes of highway. When I finally broke down and upgraded to the 14 in 2006, it bought me another 5 minutes. I knew I couldn’t continue to ride like this and I added throttlemeisters, heli bars, and they helped a little but not enough. I even tried adding weights but it was ineffectual. Even if you do succeed, the vibration will still be there, it will just occur at another frequency. Unless you tightly pack the weight material, it will rattle and actually make it worse. I finally found a way to put on an electronic cruise control - the audiovox aftermarket one- on my ZX14. This did exactly what I needed. Any time I had to drone, I could just set the cruise and give my wrist a rest. The install on the 14 was about 6 hours; you have to put a mechanical link on the throttle cable, I think it’s a pull chain on the audiovox and that was a chore, but the rest was splicing and such. Then I had to shake it down and get it set to the sensitivity properly. The whole kit, vacuum can and all added maybe 1.5 - 2 pounds. The hardest part besides the linkage was tapping the number 1 coil. The wire is thin, so you have to be careful. I’ve already done a “test fit” to the 10r and it would fit. My bet is that the Audiovox unit or maybe one pulled from a Concours (?) would easily get you a real cruise control that would permit you to do the drone stretches Unlike the throttlemeister, if you get to a hill, the electronic cruise accelerates you so you don’t have to intervene, downhill it slows. just like a cage. My total investment for this was under $200. I had to buy a relay for the brake cut off switch.
For me, it’s the time in a constant rpm range that causes the pain or needles sensation. Vary the rpms enough and I can ride longer. I suspect this will help you too. I would strongly suggest you look into finding a real cruise control unit, one that can buy you 3-5 minutes at a time of engagement time at a stretch and right wrist and hand will thank you.
Finally, do surgery as a last resort. Try to use physical therapy and strength training if you can and give it an honest try. if you’re in better shape, the chronic use injuries are fewer, shorter duration and not as severe, generally. This gets more important if you have socks / t-shirts older than some of the members here.
Good luck!