best 09 6l80e OS?

[LSX_Production]

I am looking to reflash the TCM on my 09 g8 gt. I've been reading about segment swaps, OS versions, etc. and want to Flash the best ROM to this TCM that is the most updated off the bat and is a good base to work off of. So my question is can I find an TCM Rom from an 09 vette and full flash that into the G8 with just a segment swap? If so, what is the best OS you guys have found and how do you go about doing this? I have seem some instructions and information and it seems to be a lacking in description and a little outdated. Thanks

[IXR08]

I would also like to know the answer to this???

[NicD]

I would leave the OS be and just tune with it, you can't upgrade to a "later gen" OS as the TCM inside is not compatible and there isn't anything to really be gained by changing it out for a compatible corvette OS. Also FYI any 09 C6 OS that I can find isn't compatible with an 09 G8 TCM anyways.