Thanks Halo, They are just reference boards with the stock SC Vbios.
I really haven't planned on upgrading to either a FTW or a Classified since they are all the same GP104 Chip and looks like it's another round of the Silicon Lottery as to how high your card will OC. Having more Phases doesn't mean it's going to produce much higher OC's and these Pascals don't seem to like more voltage anyway.
If I upgrade it will probably be when the 1080ti/Titan GP102 cards come out with more Cores.
As far as 4-way SLI goes, Nvidia states it will be just for Benchmarking only, But I think it will have to be enabled using a New GeForce Driver release and NOT an "Enthusiasts Key" as they lied about before.