looks like fun times.
BUT--anybody thinking of trying this- TAKE THE GRIPTAPE OFF BEFORE YOU CUT THE BOARD IF YOU DON'T ENJOY RUINING A BLADE EVERY TIME YOU MAKE A CUT...
and to aid in getting the griptape off, heat it up with a heat gun or hairdryer to soften/loosen the adhesive.
and for the love of god, get some kinda clamps/vise/something besides your friend to hold it steady for you. those kids are begging for a power tool mishap.