I put the progressive stabilizer on Friday and took it out on some nor cal windy roads yesterday. Trying to figure out if I like the thing or not. I notice just a tad of increased vibration--mostly see it in the mirrors below 60mph. After a couple of hours I was thinking this stablizer thing was more hype than anything. What I did notice is it takes more imput on the turns and I didn't know if I liked that. Towards the end of my ride I think I have become convinced of it's value. Higher speeds going through left to right--right to left tuns while staying on the throttle the bike did not float when changing directions. Second--we have a long strech of road under construction--road has been ground. The bike tracked true with no wandering through the grouved sections of road.
Overall--it was less of an impact than what I was lead to believe however the reduced floating and tracking on an uneven surface is enough to keep it on. I leave on a 2k ride this week to Utah and back--that will be the deciding factor.
Cherrio