The huge DX11 crashing thread got moved to resolved issues?

[Ardna]

I have 2 GTX 970s and a single 2560x1080 display
i7-4790K, 16GB RAM, Windows 8.1 Pro

Tried playing with DX11 and DX9, had crashes with driver version 353.62
Moved to driver version 353.06, after another player's advice, still crashes on 11 and 9.

No overlays whatsoever have been on. DX9 also acts flaky, not even playable with lowest settings.

Only seems to play well when SLI is turned off.

Although I swear I ran through a dungeon a week ago on DX11 with SLI on and had no problems until I spoke with a Levemete afterwards. That was with 353.3X driver (can't quite remember).

I just built this rig and it bums me out that I have $300 just sitting in the case not doing anything while I play FFXIV.

I plan on getting Win 10, and some are saying they haven't had any problems since upgrading. Any more news on that front?
EDIT: Just did a quick 10 load. Nothing fixed. So the question for the 10 users is: Did things work for you after doing a clean load or just the normal upgrade?