ZBrushCentral

I want to influence the tip

I used a brush to inflate.
1

The tip of the edge was not affected.

next,
I used smooth.
The tip of the edge was not affected.
2

I changed the settings.
As a result, the tip is erased.
3.PNG

I want to use a brush and smooth to influence evenly.
ideal
risou

Please tell me how to resolve.

please help me.
I am in great trouble.