It is nothing personal against you, it's just that humble oppinion can get people in to trouble where dog aggression is concerned.
I'm sorry but there was another topic the other day where you sugested a dominance issue and I kept quiet, but thought i had to voice my oppinion this time.
Rank reduction programmes were used to reduce so called dominance and caused all sorts of problems and escalation in aggressive behaviour which is why I mentioned them.
I'm not getting into this whole pack thing again as i have done it to death with others on here, but just be careful using pack structure to explain problems, because there are more probable causes at the bottom of this.
If you haven't already, I suggest you read the Culture Clash by Jean Donaldson, Dominance fact or fiction, by Barry Eaton, Dominance Theory and Dogs by james O'Heare and John Fisher's Diary of a Dotty dog Doctor.
Some real good info about the dominance panacea.