I started doing these because I wanted a composed drill, like Alan Dawson's Rudimental Ritual, that I would actually play. It has worked out really well. This entry is the same as the first one, except the snare drum fills the remainder of the the quarter note triplet— whatever isn't covered by the bass drum. It's similar to the new Reed method I outlined last month.
Learn them, paying attention to the different form for each version, memorize them, find a practice loop you like, and drill them.