I have one of the most common issues that people face when they use transformations in the 3d space. The problem is that the content that is being transformed in 3d gets blurry.
Now to fix this there is one famous solution.
i.e assuming the object is say mc.
mc.transform.matrix3d = null;
Once the animation ends you could set the movieclip's 3d matrix to null. This fixes the problem but there is a definite jerking you see when the animation completes and the matrix3d is nullified.
One of the solutions defined in flashandmath is
http://www.flashandmath.com/flashcs4/blursol/index.html
But this is not working fine for me.
If someone has a better solution that works across the board ( without any jerks! ) please let the community know !