Balancing a wheel can take time, normal practice is to remove weight by boring out material around the circumference but I prefer to add weight in the form of metal washers. During the balancing process I use masking tape to hold the washer(s) on to the side of the rim and when finally satisfied with the position (or run out of patience) I then glue and screw it/them on.
[youtube=http://www.youtube.com/watch?v=smfsgX_9oXc&w=634&h=392&hd=1]
Short video to show how freely the wheel turns on smaller bearings.
