Alien splits look amazing and are quite simple to do. Although it is the most spacially confusing move I have learned to date. Here is the guide to getting your alien split.
Straddle mount one side of your poles. You should have one leg in between both poles and one leg out of the poles in a straddle position.
The leg that is outside the pole begins to bend at the knee while you rotate your body anti clockwise. When I am in the air I like to think that I am performing the motion of skin the cat.
Once the back of the knee meets your elbow extend and engage the legs. Voila you have your alien split!
Did you get your alien split? Let me know in the comments below.