I decided to experiment with Solemn Vigil today, and, um...I'm not sure why I've never run two...you must run two equality, though, to get the most out of this deck.
It's soooooooo good, and I'm convinced that two is an auto-include going forward. I've played three straight games where I've casted a 2 mana sprint and one game where I played a 0 mana sprint into lay on hands (the greatest feeling ever).
I can do a full writeup later once I've played with it more, but I was anxious to let you all know about it. I'm currently 11-1 with the deck. Have fun!