I added a function layer accessed by holding down space, this gives me the arrow keys under my right hand without having to move.
I also added the container characters (parens, brackets, braces) to the center column which makes quick access via the function layer.
Some other optimizations were done on the function layer to assist in programming, most of the symbols are accessible on the left hand.
The first key to the right of the Raise key acts as a hyper key wich allows me to have some custom shortcuts using BetterTouchTool, such as Hyper+S (opens Safari), Hyper+E (opens Spacemacs), Hyper+z (puts the display to sleep).
Because I'm using Space+FN for most of my movements, the raise layer is a little...useless at the moment. Still haven't decided how best to use this layer.
I'm going to add some rgb under lighting, along with an arduino controller plugged in to the computer and a software interface that will allow me to coordinate some monitor back lighting with the underglow of the keyboard....just need to wire things up, proof of concept is already working.