Opinons on adjustable threaded engine leveler needed

The levelers are not needed if you disassemble the car like it was made. From the bottom. The problem comes in when you remove or install from the top, against the design. Then the leveler can help greatly. I don't see the need, because usually when you are pulling the engine, you are also doing other things like brake upgrades and suspension work. Working on the car the way it was intended, you can get all that done pretty much at once.