You do know that this flies in the face of everything we've learned around here, right? ;)
Think about this. Whatever you do now will take time to propogate. And, depending on what it is that you do, it may be somewhat difficult to undo. Why would you want to do something like this anyway, I don't see any viable reason other than to "experiment". Once you've gained the upper hand in the SERPs, you surely don't want to undo that, no, not at all. These days, having positions in those top 10 is like hitting the lottery.
None of this makes sense to me. ;)