Took Beast Jr. this Saturday. Score - 653. First MS exam I failed.
Read MS Press & Syngress cover to cover.
Was:
a) tired of reading (2-3 weeks / 2-3 books per exam)
b) somewhat overconfident (291 didn't seem hard; some experience with VPN, firewalls, security design)
c) anxious to get MCSE before second shot expires (June 31)
Just rescheduled for next Saturday (with free shot). The good thing about failing is getting more motivation