Hi @lourencovp as I’ve explained in this post, the “Width Scale” attribute in the Rhino Section Styles dialog, acts as a multiplier of the object’s Print width, but it’s not suitable for an accurate control of object’s print width in section, specially if your object has a print width set to “Hairline”.
Instead, you can use the VisualARQ’s “Print Width” attribute, at the Section Attributes section, in Rhino properties panel:
Also available in VisualARQ Object Styles dialog:
Hopefully McNeel developers implement this attribute also in the Section Styles dialog: