so what were those stupid rocks about anyways?

No clue.
Really, neither Dr Monga or Dr Shen really had any answers.
All I know is they're really rare.  Dr Shen said I was his 9th although interestingly enough only the 4th k-poucher with stones, the rest were j-pouchers - yikes!
Found out they were 90% Calcium but both of them said that there's no data to support me limiting my intake of calcium, especially as I have osteopenia (common for the colon-less).  I read some studies as well last semester when funnily enough I had to do a poster for chemistry class on calcium that said calcium supplements weren't linked to calcium deposits in the body.  Though it was mostly referring to kidney stones I am sure.  And of course, we have no idea why I got them or if they'll come back.
That doesn't bother me too much though, I think because since I've had the rock-destructing surgery I know its not a big deal and I'll not be too concerned if I have to have it done again.  Also, in my whole life worrying about something never affected a change in anything and only served to make me crazy.
So I'm just going to go about my business and hope I never get rocks in my pouch again.
Meanwhile I'm back on regular foods which is awesome because baby-food veggies were getting really old.
Despite this really random rock incident though the pouch is doing great!