I have no input on the UCA, but i believe you are correct on the LCA. It has been a while since i spoke with Kelly, so you may want to double check this on your own, but from what i understood, you basically wanted to lower the LCA "double" what you lowered the car.
For example, the first hole is 2" lower than stock, second is 3", last is 4" (i believe, again, may want to check on your own).
So if i lowered my car 1", i would use the first hole which is "double," or 2" down. If i lowered 2" id want the last hole or, or "souble," which is 4" down.
At the end of the day though, you either want them parallel, or at a slight downward angle towards the axle. The higher the angle towards the axle, the more stress you put on the tires, so the stickier tire you will need. Kelly can explain it MUCH better than i just did, so id recommend giving them a call.