Cheese-5 Gritty is an exercise for building precision and consistency with flam-fives... and getting down to the nitty gritty of flam-fives. It focuses on the second diddle releasing on an eighth-note upbeat and works on the slight contrast between grace-note height (tacet height, or "1/2 inch") and tap height (often called "3 inches"). While achieving this contrast is infeasible as tempo increases, it is an important ideal to understand, build on, and strive for.
The analogy I use is that, with doublestrokes, we strive for two completely equal motions at slower tempi, even though that becomes infeasible as tempo increases. And even at the quicker tempi, by thinking about those two equal motions and getting more sound out of the second note, we get more doublestroke quality without actually reaching that ideal of "two equal motions". Flams are the same way. Oftentimes, by simply thinking about that grace-note being "underneath" the taps, we control it just that little bit more to get it low enough and early enough to create a good-sounding flam.
