I wish I could offer advice . Spook sometimes attacks unprovoked, but I can tell with her that she is really trying to play but she thinks she can be as rough with us as she is with Remus. She will pounce on our feet and bite hard, but Ive noticed that if we react like a momcat with a misbehaving kitten she backs off. Spook never draws blood though.

I hope you can come to a solution, as it seems that you do love your kitty very much.