Today, I had to paint a large room with all new drywall. I don't do this too often. I have read on here that adhesion can be an issue of you don't get ALL the dust. A primer supposedly can do a better job even if there is a little dust left. So I figured I should do that. I think some people on here recommend using 123, so I wanted to use that, but Home Depot is still on Winter hours and I couldn't get there in time on a Sunday. So I wound up at Sherwin-Williams and I got a fiver of PVA. I am kind of scared of PVA because it is so cheap. But it is made for exactly this application, so it seemed like I can't go too far wrong. I wasn't really sure what cover to use, so I just grabbed one of my 1/2" White Dove's. What a pain to work with! It was just dripping and splattering all over the place. Then when I finally got it to the wall, it wouldn't come off the roller. I dunno. I was just hoping to get some feedback to see what I could have done better.