What do YOU use vertex commands for?

I decided to work-log my findings with regard to the 'Surface' stuff - will form the evenutal basis of a tutorial designed for beginners - I think Blitz3D needs something like this - because if there was already a tutorial on the 'Surface' stuff then I would be reading it now:

http://www.blitzbasic.com/logs/userlog.php?log=379&user=6822