Putting in the dyna beads can be done without breaking the bead seal, through the valve stem and of course you have to remove the valve. I run 4 oz. in my darksider. I've 3k so far and it's smooth at glass.
Have the valve stem about 45 degrees above bottom. A small plasticsqueeze bottle and a platic tube were included with my order. Though I didn't have to use them.