Drew,

Definitely take Todd up on his offer. Like two-handed or spey casting, nothing beats getting a bit of hands on casting instruction when it comes the center pin. Showing and doing really trumps trying to explain it. For many years I had to learn on my own, which of course caused me a number of bad habits along the way. Until you hook up with him or another mentor, I put up a short demo video just for you. In spite of all the faults and low production value, I hope it helps you visualize the timing and tempo of the BC cast while you continue to practice your Wallis cast too.
BTW, if anyone can do better please post it up, there ain't much out there.