At 15 hours and a nigh unanimous vote for the silly, I need to make some clarifications.
First of all, D10 success threshold is 6 or above, making the odds 40% per die. It's not affected by Clockwise Metamorphisis.
Players will be doing dice rolls for skill checks, during which you can say whether or not you want to roll additional Pervitin dice in the post in which you roll. Then I will roll the amount you said.
However, because you lose control of Fiona, I may add additional Pervitin dice at my leisure in places where Fiona wants to succeed to the degree she wants to succeed. She may decide to trivialize certain checks by brute force. That said, I cannot use Tilting Windmills, you can use that to ensure passing a check, or even to try and avoid that.
Oh, and because you're on autopilot, Fiona's train of thought is prone to fugue and what you see might be not immediately seen as rational, but you're the ones choosing to do drugs and streak naked, so stones and glass houses. No matter how capable Fiona believes she is in this state, she will retain self-preservation even in this state and avoid overwhelming odds.

Lastly, I do have something to do Friday so no update from then until Monday.

Writing.