i say go for it!! you'll learn all about proper technique in the training.
the best thing you can do to improve is to continue to do BA, and pay close attention to the instructor's form. everything comes with time. you also have to remember that you are your own worst critic. what may look "awkward" to you may in fact be correct or close to it.... i know i find it funny watching myself in the mirror!
i think it's a lot about feel as well... when i practice i don't usually watch myself because i know how the move should look and i execute it according to the guidelines... i.e. if i'm doing supermans, i know that my arm should fully extend and then pull back to my hip - make sure you use your full range of motion to do so.
hope that helps! and good luck with your training when you decide to take it!!
Carpe Diem