I drilled a 1/4" hole in the center of a nickle and it worked fine. But I think it stopped all anti dive action.
Had to get longer screws to put it together with. On my 2013 any front brake action locked the shocks.
I have since put the mono shocks in and they work good. The front doesn't bottom out any more.
The handle bar risers are the best improvement. Before it felt like my arms were spread out like I was flying.