That track flat kills! And, I hadn't seen the video yet.
Here's my guess:
F# - Open Hammer Octave
G# - Open Hammer Root Octave
A - Open Hammer Root Octave
Code:
-------------------------------
----4-----6-----7--------------
-------------------------------
0-2---0-4---0-5----------------
Please excuse my lame-o tab attempt.
That Christian ain't no slouch.