I was in a similar situation last year, considered moving up but am still at a school ranked in the 30s. I found it more difficult than I thought it'd be to find summer associate jobs but ended up being able to split with two V20 firms. I've heard its a lot tougher to get clerkships from the lower ranked schools, but is it worth it to go so far in to debt? From my experience, the BigLaw jobs will be there if you are top 10% and make it on Law Review at your lower ranked tier 1.
That's good to hear you did well staying. Did you end up staying in the same area as your school? Another big concern that I only touched on in my previous post is that in the long run I plan on practicing in CA (though I don't mind staying on the east coast for a few years). I'm worried that a degree from a school in the 30's will serve me poorly in that west coast job hunt down the line.
I had initially wanted to stay close to my school, but actually had better offers from out of market firms.
Another thing to keep in mind is whether or not you will be able to be on law review if you transfer. I would imagine some employers would consider top 10% + law review at a lower tier one to be better than being near the median without law review at a T14. Just guessing on this one though.