Nope or not yet?
If Rick Perry gets under 10% of the vote in both SC and FL will you switch then?
No
If Romney takes SC and FL (after already taking NH and supposedly, IA), and then wins NV (where he is favored), it will be very, very difficult to stop him after that point.
The numbers are the numbers, unfortunately.
After SC MAYBE Fla. it will be too late and Romney will take the crown.