Illustrate Halo Effect (No Back-rolling)

when you take in brush when you're brushing your cut in and i'm going to brush my cut in like this i'm going to go back and finish it off at least brush strokes so you got your brush strokes right there then you're going to come back and actually roll your wall so i'm going to roll my wall and if this is for instance my ceiling cut in right here i'm going to cut in my ceiling and then i'm going to go back and back brush it some people are like there's no need to back roll your cut in so that's my ceiling kind of now i'm going to come back and roll my wall i'm going to come up as close as i can without touching the ceiling and if you don't back roll it what you're gonna end up having is you've got stipple marks right here so your roller leaves stippling stipple marks and then your brush leaves brush strokes so you got brush strokes going this way you've got stippling going that way and what that does is it shows a difference it's what we call a halo and it's in what causes the halo is the stippling from the the roller is a different texture than the brush stroke which leaves what we call roping and that's a difference and what you're going to see is not necessarily um a color difference but you do leave a color difference and i'll tell you why but you leave haloing due to textured inconsistencies now