I also just finished WHFS and loved the gains. I am liking this program so far, although i am looking forward to the heavy days versus the high rep days, go figure.
I want to do this followed by primed for muscle by CW with a week in between. The first heavy day didn't seem to hard, but i was feeling it the next day and right after the workout also.
I like that this was a 4 weeker coming off a 2 a day 8 weeker. Instead of doing back extensions i substituted romanian deadlifts and did snatches instead of seated calf raises. Might make the last exercise a variable and change it up.