Cutting Remark...

Other than the original dovetail, there are four rear sight cuts you can do to your 1911-pattern pistol: Novak, Heinie, Bomar, and Wrong.

— Tamara K. (@TamSlick) November 30, 2018

...and once you go Bomar, you'll never go back. Because you can't. At least, not without welding up and re-cutting stuff.