The black ones are great but the white bristle brushes work and last a lot better! I just bought 3 packs and they will last a LONG time!
The white brush is just not as strong as the green brush was. The bristles are constantly falling out. I don't feel it cleans the pots as well and I end up scrubbing them with a scrubby sponge. Please bring back the green bristles. They are better.
You are correct that the white bristles are not as stiff as were the green bristles. You might want to try the orange pot and pan brushes. Regarding the bristles falling out; serrated knives and any utensils or cookery that have 'notches' (such as a diamond shape) will pluck bristles from the brush. Green brushes were discontinues because the new minimum order quantity of filament (bristles) is a 40-year supply.