I tried to keep them somewhat consistent, but took the middle two a little easier because my gut said to hold back a little to see how my body felt at the half way point. Turns out, I felt fine and ran the last one as hard as the first. I still could have pushed much harder, but didn't want to blow my legs out too much, since I have my 14 miler coming up on Saturday. I'm sure I'll be plenty sore from this workout, since I haven't run this fast in a while. In all, I think the workout was a nice way of waking my system up. I'll be rotating between these and increasing number of 800 and hill repeats every other week to build some extra speed and power. I hope it translates into feeling much better on my future runs.