In my opinion the answer to nearly any question similar to this always starts with: "Play painfully slow, and gradually build speed until you begin to make mistakes, hold for a few counts, and lower yourself back down"
It's really not any different then doing any strength training, except your not there to strengthen muscles so much, we are their more to train reflexes. BUT you are still using a lot of muscles in your hands/wrists/forearm that need to be exercised constitantly to allow you to play single or double strokes on a floor tom at such high speeds, because there is little rebound.
I think it was Vince Gironda (famous bodybuilder/trainer): I remember reading a book once, or swiftly reading it looking for an answer to something, and he wrote a story about how he was doing some body building competition that he had won (one of his first that helped jump start his career as a trainer i believe), he had gone up on stage, and said he was so nervous etc, but once he gained control of himself and "got in the zone", so to speak, he was able to block out everything else, and really focus on the contraction and relaxing of the muscles and did twice as many repetitions of his exercise, with ease, people thought the exercise was a joke to him I guess because it was so flawless, and the contracting of the muscles and relaxation, were so steady.
Just something to think about. Now I don't read too many different books, or dvds etc on technique anymore (mostly because I don't feel a need to), but they all seem to give the same advice.
I think Frank Bellucci had a video where he was talking about playing on practice pads and whatnot. His response to people who said they could play x rudiments on the practice pad at such and such tempos was always, "That's nice, but how about on a 16" floor?"
Ever since I have seen that from Bellucci, I practice a lot of my rudiments on my toms and almost avoid my snare (not completely obviously, snares sound too cool to me at least), I will also practice strictly going in and out of quarter, eighth, sixteenth, triplets and sextuplets, in no special order really, gradually increasing speed, until it's just starting to get sloppy. Best way is to just do it, and make sure you have no tension in your hands/arms. Striving for no tension has forced me into playing "techniques" that I didn't know existed (for instance the moeller) until I started reading about them on forums/videos. I started striving for that after learning a little bit of qigong/tai chi movements and being told if your tensing, your doing it wrong (in different words but that is the idea).
I got a little off topic, I apologize, I just rolled out of bed