Gentlemen, my apologies for not seeing your responses sooner. Thank you Zoren. I still have a C6 GS because I would be buried under too much negative equity to jump onto a C7Z06 right now.
Ped, I couldn't have done it without the excellent instruction from MGW's YouTube channel. It may seem difficult at first but the video makes it a cinch. Same feeling between C6 and C7. A little notchier but more pleasant. I recommend the adapter so you can also run their 1lb shift knobs.