What i did to flatten the pin was this:
1st, i completely removed the CG from the case. Then i found a piece of wood with a small hole in it, and place the CG over it lining up the pin to fall into the hold in the wood. Then i removed the pin completely.
Using a pair of pliers, i placed the pin where the two arms meet (here the pliers meet the pin holding the pliers at 90 degrees) and let the rounded end of the pin stick out about 2 mm. This ensures that when filing/sanding/grinding the pin remains perpendicular to the surface used to removing the rounded edge. I used a sharpening stone to flatten the top of the pin (sharpening stone for tools, it looks like a little brick, one side is rough and the other is smoother grit*) I used the rough side to remove most of the bulb on the pin. By using the pliers, i was able to gring at 90 degress to the sharpening stone, and i was able to control the strock in 1 direction. Then i used the smooth side to achieve the same fine brushed look as the rest of the CG.
Pop the pin back in (i used the plier where they are pinned together becasue it is flat) and push until the pliers are flush against the CG. Screw your CG back on and your good to go.
I know ppl use a dremel tool or some other mechanical tools to grind, i just think you have more control when you and grind the pin and you are able to get a great result.
Cheers, sory about the length
