Multiple Versions for multiple cards

Hi,

I have a gtx 260 and a gtx 760

one is supported by Long Lived Branch version the other by Short Lived Branch version. I was wondering if anyone has tried either of these scenarios:

a) Install both versions of glx, perhaps even using a container for one so I can use short lived on gtx 760 and long lived on gtx 260?

b) Install nouveau on the gtx 260, perhaps even using a container and use short lived on gtx 760?