I just mounted the D3s. they are a B@#%!!!
I had to cut the collers off both ends of the throttle with a dremmel in order to make them fit (sketchy). the aluminum collers swivel independantly of the grip which is fine when your holding on with ring and pinky but trying to throttle with the middle pointer while covering the front brake is awkward. the left side is loose.
Im going to try and get some spray adhesive in there tomorrow and hope that the rest just needs to adjust to itself but at the ~$45 you would probably be better off with the rizomas that these are meant to copy (but that include the throttle) and save yourself the headache.