I've run cadence drills for the past two Mondays, and in both cases I've been tired afterwards. I think I've run too many of the drills. Galloway says to just run 3-7 of them. I've probably been running 9 or 10 of them. Even though my increase in speed is slight, the number of the drills means I'm running that faster pace for a significant portion of my run. Next Monday I'll cut back to four or five drills and see how that goes. I haven't been running very fast during the winter, and I need some time to increase my speed.
I usually run my two-hour run on Wednesdays, but I have a busy schedule today. I'll do that run tomorrow.