How to paint Weight Black to Weight Blue? My question here is how can I get the part in black to blue. (see the images)
I don't know exactly what the weight black does but I think that it disturbing the natural weight paint.

When I paint with any value or even 0.05, the Vertex works like was painted with 1. And I think is because that are the black color on.

The Weight Tool "Clean" expands the black, and paint with Brush:Mix with Blend:Substract (and other combinations) turns black also.

Paint in the parts blue gets the good results with varied values. Diferent in the black 0.0/1.0

For any more clarification about it, ask me please.
Try switch 'Show Zero Weights' to none ...at least to get rid of the black.



I think 'Clean' might be confusing the issue...



I can't see your brush settings but I paint with auto - normalize on, and find 'Smooth' the most useful of the Weight Tools for fixing.

The manual itself is also full of good info.