Also don't be afraid to use the system as it is set. I had a lengthy discussion elsewhere about functions being different to access and the "flaw" that there are no direct buttons for Flash mode and Flash comp. With the quick-nav system the way it is, the custom button, and the menu start option on page three of the setup menu set to 'previous', you basically have 3 customizable buttons. How is this? Well I set the button-ops setting to 'quick-nav' so I can always see all my settings and therefor am less likely to miss an incorrect setting. As I said, with the previous setting, the menu button always goes back to the last point. The Fn button always goes back to the last changed option too, so if I go into a shooting situation where I know I will need a couple things I don't have dedicated buttons for, I can simply move the quick-navi cursor to one, set the menu to another, and I still have the custom button free for a third. At an event this means that my C button is set for flash mode, my quick-nav screen is set to the flash comp field so that I have all my flash controls in one place, and my menu is on the creative styles since I might change it, but not often. Very fast system, but I know this is a little unconventional. I suppose that is the greatest tip, don't be afraid to try unconventional things with it. It might just surprise you.