I have written in the past about my experiment using a French press grind on the Aeropress. Recently, I've been experimenting with coarser grinds. Not as coarse as a French press, but a bit coarser than usual. I am now convinced a grind closer to the one I use for my Kalita Wave produces a better brew than the traditional "medium-to-fine" recommended by many.
In my latest post for the Steampunk Coffee blog, I talk about what I've learned experimenting with coarser grinds on the Aeropress.