Jeremy,
I just added a pic of the cutout-template to POST 121. It is the same size as the part of the rocker switch (paddle shifter switch) that mounts below the surface of the back side of the wheel; You just trace it with a knife and cut. It also has a hole that corresponds to the paddle shifter mounting hole so that you can use it to mark where to drill the hole.

I have provided pics of where i have mounted the paddles on the SLK32 wheels .... very shortly, you will be seeing pics of where Crossfire owners have mounted their switches (perhaps Big Kid or Jason_HBC will have pics by next weekend ...) I imagine we can then create a second template that will make it easier to locate exactly where to start cutting.

Chris