My Arches have a bullet pixel inserted into the back side of a Pex translucent pipe. The pixels are spaced about 1.75 inches apart and blending/bleeding IS present but (IMO) enhances my effects. In most cases, effects dont have a clean/clear break and even if they do, they are moving too fast for the blending to be visible. With that said, most of my effects encompass at least 15 or 20 pixels (Ok Garlands do get to the single pixel level but the adjacent pixels are usually off). You can see the arches in my 2020 videos on youtube. Search for "MartinMueller2003 2020"