Nice job Malcolm

Getting some science in there...
In case anyone is still confused on 4-beat versus 5, I tend to think of it this way:
For 4-beat weave, you are doing different stuff on each side of the body. For instance you can wrap your wrists around each other on your right side, thus doing 4 beats on the right instead of 3.
Then you (seemingly) do the normal 3-beat weave on your left side. The difference though is that when you bring both of your hands back to the left side to unwind them, they are still twisted around each other.
Thus, the act of undoing your wrists is an added beat, giving you a total of 4 on the left side also.
When you twist your wrists on both sides, you not only get the extra beat of twisting your wrists on each side, but the extra beat of untwisting them. This is what gives you a total of 5 beats on each side.
Hope that helps... 
Shawn