I've had a few people ask me how things have progressed with my situation. I've had to face some harsh realities. I've concluded that fighting a sociopath is mostly an uphill battle due to the enormous burden of proof it takes to bring one down. I've decided the best thing I can do is be a loving father to my son and let him make his own decision, as he gets older. He already says he wants to stay with me and I see it as highly likely he will make that decision when he is old enough to decide which parent he wants to stay with. In the mean time, I make decisions that keep the peace between his mother and myself. Anything else would add stress to my sons life and that is the last thing I want.
If I believed there were some immediate harm occuring to my son I would definitely not take the tact I have. Barring some physical risk I will bide my time and do the best I can with the hand I've been dealt. I'm sure everyones situation differs from mine and that my decision will not prove a good fit for everyone else. The one piece of advice I would give to anyone else, keeping in mind that I am no expert in the field, is to do what you think is right for your child. If you are in a relationship with a sociopath and there are no children involved I would tell you to get away as fast as possible.