Accent Tap (2008) is a comprehensive two-height warm-up that covers buck figures, accent-tap contexts, singlestroke figures, and paradiddle figures. It was written with the goal of being part of the NCSU Drumline warm-up repertoire, but John wrote an on-field warm-up with more brevity and focus. This, however, is a good long warm-up to work on accents and taps, with some groovy interludes. It's based on Groovement Movement from the original FatMattDrums, and I think that any level of drumline could find some useful portions to excerpt from it.