This won't work - modern day ASUS ROG motherboards, such as Rampage Extreme, have on-board physical controls to change the FSB on-the-fly. It could be changed after the very first iteration so there wouldn't be visible descrepancies.
You just need a buddy on ROG controls while you're filming We would be better off with a repaired validator of SuperPI. Could hwbot programmers fix that?
All in all this is a no go.