Is it a replacement?

[FRC1293]

Suppose that our team has a Super Secret Widget of Graciously Professional Doom (TM). It functions fine, but it's a little hefty. If we were to use the original drawings for the Super Secret Widget of Graciously Professional Doom (TM) and machine it from a lighter material, would we still be adding robustness to the part, thus making it a Replacement Part?

[GDC]

Please refer to the first example cited in the REPLACEMENT PART definition. The Super Secret Widget of Graciously Professional Doom (TM) - version 2.0 - made of lighter materials than the original but otherwise functionally identical would be considered a REPLACEMENT PART for the original part.