Quote Originally Posted by fitz19d View Post
Course I suppose that could be wordplay since that would still depending on how they do it still amount to the same as a lower and filling it back in.
If I have a small piece of aluminum - just a 3"x2" block and I put that in the middle of a form that turns out 80% uppers (think filling a mold - not milling out from a billet block). Did I ever manufacture a complete lower? Lets say this small block inst square anymore - but it has some pegs (still aluminium) stick out of it in certain directions. I put it in the middle of the same mold and fill it up with aluminum - have I made a complete lower? Now take it one more -- that same piece of aluminum with the pegs is a different color than the aluminium I am going to use to fill the mold. When I fill the mold have I created a complete lower? You can see the two distinct colors - one looks like an odd square with some cylindrical rods coming out of it, the other color looks EXACTLY like a completed lower.

Chemically the two different colors are the same material - they are bonded at the molecular level. So how is it that the piece that is one color is any different from the piece that is another color?