Restaining a deck with worn solid stain

Hi,

This may have been answered before, but this forum is immense, so:

I have a deck at least 10 yrs old that has a solid stain applied by the previous owners.  The articles on this site have convinced me that applying a semi-transparent stain would be a waste of time and money.  Still, I need to re-stain it, apparently with another solid stain.

What steps do I need to take if I'm applying a solid stain (I know Flood is preferred here) on a deck that currently has an old, worn solid stain?  Do I need to use a cleaner and/or brightener  since the old stain isn't going to come off, or can I simply pressure wash, let dry, and restain? I want to make sure I do this as correctly as possible.

Thanks!