XGen density mask isn't getting rid of all hairs

[jamesbeswick.nz]

Hi I've created a density mask for my xgen hair but when I've painted in the areas black that I want the hairs removed as a test there are still some hairs left when it should be getting rid of them all.

Render's same:

Any ideas? I've tried increasing resolution of mask map to 2k but no change.

Thanks

[jamesbeswick.nz · Accepted solution]

Never mind, found solution by using the brush without feather got rid of it, strange though.

[jergarciaPCRTT]

was trying to find a solution for the same thing... 3 years have passed now but I figured out that starting from a black density mask and then paint in white solves the issue (the problem seems to be that the border retain white vertex color info though you can't erase it)