I had Pilgrimage. I never really got into it, until I heard it playing at someone else's house, then I was like "what is this?"Which Om CD do you have? I've seen them live many times and if you've got one of the first couple releases the show will not reflect that version of Om. I say that just as a statement of fact, not as a value judgment.
I'll add that you should do everything you can to get as close to his rig as possible. (Though for a bass player I suppose that goes without saying.)
That happens to me sometimes, I have expectations that aren't met so don't really like it, but when I hear it without expectations my ears perk up
The place they're playing is interesting - it's a converted movie theater - for the longest time it was in its original form with just one massive screen - used to go see Hong Kong films there on Thursdays. They'd play 2 showings of two movies, I remember seeing Spinal Tap there (first time on the big screen though I'd seen it many times on video), then A Mighty Wind for the first time, then watched Spinal Tap again! Anyway, in the new setup the stage is really high from the area right in front, but there are two "balconies" that are more on the level of the stage. Not sure which space I like better, I have only seen one show there since they renovated it.