Tobias , I feel that it needs to be done this way everything this pup is showing me that she will be a handful .She's a baby yet...I don't worry about steadying puppies - I hold them by their chest and when the toy is in the air, release them on their name... use the motion/prey drive to your advantage. Sounds like she is adjusting well to her new life.
Oh yeah all the signs are there, after all she is out of FC/AFC MICKEY who is a thinker and a Pow granddaughter. I've seen Mickey run at an event but Pow I have never seen before and he from what I've read brings alot to the table. No work today she gets a day off.In the end only you can be the judge of 'how much dog' you have. One thing to keep in mind is 'you can take it out of them, but you can't put it back in' --- If she is 'hesitant' to go once you release her, it seems like you are making her wonder if she should go or not go? At 8 weeks, I don't want any 'thinking' about going... That said, you are the one with the puppy in your hands you know what she is doing, we only know what you tell us she is doing.