I wonder if it is actually more a case of not doing squats or deads for ages (couldn’t see any for a while) and then doing them both in the same session and after the other stuff you did. That would knock anyone around, even SuperStef .
Excuse the pics but check out
http://www.t-nation.com/free_online_article/sports_body_training_performance/advanced_glute_training&cr=
I alternate between GM & RDL for 4 weeks and on the other day Glute Bridge & Hip Thrust.
Checked out the pics, looks like a fun time all round
.