Avon grips and gloves, I worked for Justin Boot Co for 8+ yrs and have alot of issues with my wrist. My apes helped along with cruise control everywhere I go.
The position of your wrists is a far greater factor (than vibration) in median nerve entrapment at the wrist (carpal tunnel syndrome). Carpal tunnel splints at night while you sleep are likely a far better investment that the vibrator gloves.
I am on my second set of HD Nostalgic grips, love 'em. That said, I have an issue with CTS due to my occupation involving repetitive motion. Rather than hanging up my lab coat, I attended a physical therapy session and had the therapist teach me the excercises that would best reduce my problem. I simply incorporated them into my weight-training at the gym, and now I just have to do three sets of 15 wrist curls using seperate 22.5, 25 and 27.5 pound bars. Voila! No more CTS. Your muscle injuries may be different, but some professional advice couldn't hurt, if you haven't already addressed this. Keep trying things, one or more are bound to help...
I just looked at the Vibranator web site seems appealing just want to hear from a HD owner before I spend my $$ on em.
Bought them on a whim for 1/2 price, sat in a box on the shelf for over a year. Finally put them in this spring and they work. No more numb buzzy feeling in my hands, even after riding all day.