ZBrushCentral

Uv Master protect/Attract question

When using UV Master protect, how do you only protect or attract one side of a thin object. My protect or attract painting bleeds through on thin models. Below is a sample of a mask I tried to protect and attract and every stroke bleeds through.
Is there a way to limit it to one side on thin topology? Thank you

Attachments

UV Master Mask.jpg

UV Master Mask copy.jpg

brush.auto masking.backface masking

Thank you so much!