Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.
Has to be clocked up as SLi can't run independant speeds, it should clock up automatically though if you have the faster card in in the Primary slot (and the card in the second is the same speed as Primary as welll).