YD, 3*5 min @ 10kp seems a little on the short side to me. Might be worth doing the first @ 10kp, the second ~8kp, the third around 5kp?
prf, what happened with the ankle?
WJH, tempo running is far from junk mileage but the stuff that's neither easy nor tempo-ish is. We've discussed it before but for most of us easy is at least MP + 60s (so for you no quicker than ~8:20/m).
Track this morning, 8*400 w/2'30 rec. 78.6, 74.4, 74.3, 71.5, 71.3, 70.6, 70.8, 69.5. Not the hardest session ever as 2'30 rec was pretty long (although I can see a pure sprinter, having less of an endurance base would find this much tougher), but 3k+ of running at under 5:00/m pace is good.
Tried out the Adizero Cadences too, and I like them. They feel quite light and like a long-distance shoe but with spikes on, compared with the Velocity 3's which are more uncomfortable and are built more for pure performance. I think I'll stick with the Cadences for sessions with more volume in them.