Where to begin...

I never thought my post would have produced this kind of response! Thank you all for your feedback it has all been helpful. Just some clarafication:
Kimi has never exhibited what I would consider "red line" behavior. When she has gotten out of hand we have resolved the situation and usully on a positive note. She has been "mouthy" in the past but has calmed down quite a bitthe longer that she has been with us. She has always had an issue with other dogs. There has been only one dog that she has been able to play with and not have it end up in a full on fight. Oddly enough the dog belongs to the head trainer and he is a Cane Corso. I have had some success with pinning her to the ground until she is exhausted and gives up. She has stopped "freaking out" everytime she sees or hears a dog and she will let anyone pet her so long as they don't go over her head (and with one of us present obviously). We live just outside Philadelphia and our original purpose for putting her into day care was to get her better socialized with other dogs. While she acts up from time to time I would not say that she is unruely by any streatch of the imagination. We have just bought her a back pack hoping that she will feel that she has a job while we walk. The kicker is that the only time we have ever seen her try to bite someone was when the head trainer lost her footing and (while trying to catch herself) swung her arms towards Kimi. We will be looking at the alpha bootcamp and other options for Kimi. I failed to mention this in my original post but she is a rescue. we got her when she was 6-8 months old. She grew up around other rescue Akitas and pit bulls. When we went to meet her for the first time it didn't seem like there was a lot of socialization that was taking place for any of the dogs.