What you are describing sounds like too much toe-in pulling the car down on the stops. Jack the car up and set it back down. Then bounce it up and down multiple times. If the ride height is back where it was right after the alignment, you have found the problem.
Like I said, I have seen this otherwise I wouldn't believe it. We had slightly too much toe-in on my son's Barracuda. Pulled the front down in ten feet...
