Holy lipo bank batman. That is going to have some decent oomph. Can i ask the spec of the cells you're using?
To be honest that isn't bad specs at all really, plenty of overhead as well (always a good thing to see). I will be watching this as i am intrigued with what you think of the board, ive not found many reviews of it but am interested in trying it.
It's a really nice looking box if nothing else, great work on that.