... Having to set an RB as a flex for example could really throw off your head to head. ...
That's the idea though. It adds an extra element. Usually, the weekly's will not affect how you line up since there is no mandate. It may sway you one way or another for e.g. if you were thinking between a WR/RB as your flex, but that's not for every week.
Here is what I am thinking:
1. Highest score as a loser
2. Highest score total with the bottom 2 RBs
3. Most Rushing TDs by a QB
4. Lowest points by a defense
etc.
Only happens for 5 weeks (determined before the season).
Timer stays at 60 seconds.