My challenges in lerning Zbrush

I thought I write a post about some of my struggles as I modeled my "Lil Warrior" character in Zbrush. Masking has been great challenge for me since It has taken me a while to grasp how it works. As shown in my screen capture I was trying to create eyebrows mask, but each time I draw the mask it will appear in the back as bellow image shows..

At the moment I was sculpting this I was not able to find any videos that will help me exclude this problem until I decide to bring in my Photoshop skills.

How:

Control >> alt and dragging to the unwanted mask for this example the back of the head will delete that mask.

I am glad that issue was taken care off and I was able to move on and extract the eyebrows by going

SubTool>>EXtract>>Accept.