Very nice, although my preference is for numbers in a box like this:
http://protapesigns.com/images/71BSP.jpg
Follows along with a lot of club regulations.
Limoncello--a lot of groups that run HPDE days don't care what number you use as long as no one else has it that day. All of the ones I've ever ran with just let me register whatever number I wanted. It helps if you don't choose a common number of course.
