i have not personally used one yet.. but will this year racing.
there have been a few reviews on them and they have all came back with good standings! from the reviews that i have read.. the people that have used one really liked the fact that you dont mount it to the top nut on the upper triple.. you mount it to the upper triple and to the bolts that hold the gas tank down. the reason that they like this is that it will flip up out of the way of the tank if you happen to need to get under the tank. also the same people were using scotts dampners and said that the pit-bull dampner is top notch and very easy to adjust! i will see if i can find the reviews that i read and post a link.