So i've been trying to structure my training better (with the aid of joe friels book) and have just finished peaking before a taper this week and a big race next weekend. I've noticed in that last few workouts i seem to have lost some strength and endurance (i've also felt on the cusp of overtraining) and i'm wondering is this is the norm? will the taper week help me recoup enough that i'll come back stronger and faster?