Andrew,
Bought the GH4 guide a few weeks before buying my GH4 and it made day one use so much easier for me. Love the C1-C3 settings.
I am holding on to my hacked GH2 as well. Wondering if there are settings for the GH2 that best fit the C1,C2,C3 setting you provide for the GH4 - want to be able to match up footage.
Thanks,
John