Yea I meant bridge finger..lol, never heard that term before. By first I assume you mean closest to the back of the case?
I've read the second bridge can have a very mild improvement in performance. Also read it can have a negative affect.
Edit - According to AMD's own site:
◾For an AMD CrossFire™ system, a second AMD Radeon™ HD 7950 GPU, an AMD CrossFire™ Ready motherboard and one AMD CrossFire™ Bridge Interconnect cable is required
Simple enough, though I think two would look better
Edited by Gigatel - 3/28/13 at 5:18pm