So I can't really find a solid answer on where to ground the PCV at. I've read that the bolt for the reservoir was not good. Can I just ground it to the battery? It should be here on Friday and want to install it. My bike is a 2012 C14 that is stock except I pulled the flies. I can't wait to feel the results.

I ground mine in 2 places. One bolt to the frame, and ran another wire from there to the battery. Been 3 years without a hiccup, or corrosion forming at the connections.

I am one of the lucky few I reckon that has had no issues using the reservoir bolt since 2008.  Some 52,000 miles, so it must not be that bad

The current will follow the shortest path back to the battery anyway, so yes you can ground to the battery.

I am one of the lucky few I reckon that has had no issues using the reservoir bolt since 2008.  Some 52,000 miles, so it must not be that bad

+1... no problems been on since '08.

I used the accessory leads in the boot on the left side of the dash.