I am not sure if I would like the guarded main or not. I have been doing electrical for 30 plus years and always worked around the unguarded main. You learn real quick how to be careful around those wires. You always try to work with the power off, but sometimes you can't. We have wrapped rubber "blankets" around the main conductors so that we don't touch them. I also gave up wearing my wedding band for all the years I was an electrician. The band would not be on at all during the day and I only wore it when I wasn't working.
