I raised my forks by 1 inch or so with my vortex clipons and enjoy the shorter rake, makes it turn in quicker. Some guys don't like the clipons that clamp above the triple tree because they say they can't feel the front tire as well, but its all personal preference both are good products.
The cables rub a little on the fairings at lock to lock but you can adjust them all day long as far as angle and length goes. My bike won't be street worthy for much longer though so it's not of much concern to me as opposed to the guys riding on the street. Kitaco's may work a little better as far as clearance compared to the vortex.