Philips shape is the next step up from a flat head. Its just a double flat head sort of. It self centers and only requires 2 tooling motions if they are being ground.

The dont overtighten thing has always seemed like a weird misunderstanding that all bit types could be designed to do that.

The recipe is different for the store brand. I did this stuff in the dairy industry for a while. Its not production cycles in dairy, it’s vats. So store brand orders a few vats of product, with way lay less actual milk or doesnt specify as high a minimum quality milk products. More dyes and filler during finishing and no aging. All store brands are essentially flavored and colored mozzarella. They are lower quality.

I still buy them though. Mozzarella is good enough for most recipes.

For other products it’s similar. Lower tolerances on inputs and outputs to reduce cost. Still probably 80% as good as name brand.