Should I wear gloves for safety while playing tug with my dog to protect my hands?

I'm working on building drive and focus with 1 year old German Shepherd. She has trememdous intensity. When we work with the tug toys we are at the stage where she will wait (sit) until I give a release command to try and grab the tug, and she will also out-it when requested. She will also stay seated as I walk away, and come to get it only when released. As I ratchet up intensity (by darting the tug in front of her so she has to work really hard to grab it) there have been one or two times where she got my hand by accident -- thankfully, nothing too major.

My question is: should I wear gloves for safety? Or should I expect her to be 'perfect' and manage to always land on the tug and not my hand(!)? Or should I not be so tough and make it just a little easier for her to get it by not being so quick with my motions? Or something else?

In any case, I assume I don't want to diminish drive by scolding her if she misses the tug...

Thanks for your thoughts!