Does anyone have any suggestions as to how to neatly scribe thick lines in styrene? I am working on a prop replica that has a number of thin lines which are not an issue, but then there are several areas with much thicker/wider detail lines that I just can't get right (see photo). I have tried scribing in multiple passes using a carbine scribe, an awl, using a rotary bit with a template to butt up against, but nothing comes out wide or clean enough. Any suggestions before I just cut out a hole and make a separate "insert" piece glued to a backing? Thanks in advance!