I am so proud of you!!!! Ashtanga is HARD CORE. That is awesome!!! I love that "good sore" feeling. I used to do Ashtanga in boston, but I couldn't find a good ashtanga teacher in atlanta. Hearing about your yoga journey is also very motivational for me !!
If you are interested in trying something new, I would really recommend an Anusara class. It is flow-based, like ashtanga or vinyasa, except not as fast, because they talk more about alingment. But the whole philosophy is based on opening the heart and revealing your own inner goodness. (Really different from a lot of exercise and yoga which is about dominating the body into submission). All the Anusara teachers have to go through extremely intense training, I think with the person who invented it, so there is a lot of built-in quality control. Basically I love it... there is a lot of Heart Language in it, which is really helping me with my journey right now, sounds like you might like it too! I wish we lived in the same place, we could go together!!