best bet, take it all apart and start over followign the directions from Black VCG. You should not need to put all your shims in there, unless you are trying to force runaway.
If you still haver an o-ring left in the bag, chances are the ULT is NOT assembled correctly, so you should start there, then follow the instructions in this thread to set it up.
I have used 3 ULT's now, and they all used standard setup +/- 1 shim pretty much.
ps. This is an OOOOOOLLLLLLDDDD stickied thread, best bet would be to make a new post because most of the people in the know dont check these old stickied threads anymore.