Also can defocus for making a fat line using Score.
What you are doing would work better for really thick lines, but if they are only 1/16 +/-, defocus will do them fast.
Thanks for sharing the tip. If I get into a large project with thicker lines than normal I will (hopefully) remember this and give it a try.
Here are some experiments I did using the defocus method (can be a large time saver once the parameters are nailed down)