1080TI SLI and VR performance.

I am thinking about adding another 1080TI to my rig. I was curious if anybody is running this setup and what kind of performance are you getting with the Vive Pro or Samsung Odyssey HDM. Im curious about this because with all the shenanigans going on with the 2080/2080TI I think it may be better to just SLI my 1080TI instead of buying one of the new cards.