Not just 1911 or BHP extractors, but JMB locked breech, tilt bbl extractor design and function. First some pics to seed the ground:
The S80 extractors are from "semi-custom" and "custom shops" and the S70 extractor is from a "tier 1" gunsmiths shop.
All, except the BHP (obviously) are 45ACP extractors.
Not a single one is properly made. Material, finish, or design, take your pick, all are wrong. As the week goes on, internal vs external (believe it or not, internal extractors have some big inherent advantages), proper material selection (believe it or not, MIM'ing this part isn't inherently bad), and why you should be happy that guys like Jason Burton spend so much time preping and polishing a part 99% of his customers never even see.