It took me an hour to find the thread (
http://www.toyotanation.com/forum/t52165.html)
But I finally found it again.
Since I retrofitted and sanded my headlights to use projectors and things have been bright. My minor mistake was to sand down and clear the lens using my old headlights. It's not as clear as I'd like. I recently resanded them, but it's still not as clear as I'd like it to be.
I wanted to find a shop around here (bodyshop and plastic fabricating shops) that would sand down the textured lens of a gen 4 headlight (like what ptycamry did) but no one wanted to do it or it was too $$$.
So that's why I searched for the thread where Velox swapped a Gen 4 lens for a Gen 4.5 lens to make it clear.
Has anyone else done this? I've pm'd velox, but I want to see if anyone else has done it? Is it a good enough alternative to try it?