The most I could get is ~109 Hz with the adapter. Still pretty good. 
Naw, the Lightning only has single link DVI connectors. Card would have been 1000 times better if it had 4x mini-DP and 1x DL-DVI, or even just 6 mini-DP and make it an "Eyefinity 6" type card.
Oh and I just realize I couldn't go with the DCUII as when you use the DL-DVI port, it disables the 4th DP.

Naw, the Lightning only has single link DVI connectors. Card would have been 1000 times better if it had 4x mini-DP and 1x DL-DVI, or even just 6 mini-DP and make it an "Eyefinity 6" type card.
Oh and I just realize I couldn't go with the DCUII as when you use the DL-DVI port, it disables the 4th DP.