8 hour schools...what do you teach?

[FUBLUE]

I have a question for all my veteran and non-veteran fellow "blues" out there...coaches too. I've been kicking an idea around in my head about giving a one-day, 8-hour clinic to ASA umpires in the area. I was wondering what needs to be included in an 8-hour day that will do the following:

1. refresh veterans
2. inform novices
3. keep everyone goind

Basically, what is the main thing that needs to be done in this 8-hour day that will start to prepare umpires for a softball season (unlike some of my friends in texas, georgia and california, it SNOWS all winter here).

I welcome any help.