I use a similar damper made by F.A.S.T on my xr 650 l, it really helps tame the thumper vibes, BA's already have brass bar end weights inserted from the factory, that style damper probably would reduce the vibes more, but i'm not sure I'd ever get the stock weights out. lol

Outside a dog a book is a mans best friend, inside a dog it's to dark to read.