Hello to all of the door experts out there. I have a question about painting doors. I took all of my current doors (stained wood) and painted them all white. Yes, it's terrible looking, I know, but I don't have the money to buy doors with panels yet. Some of them, upon rehanging the door, are difficult to shut and/or open because of the added layer of paint. I understand why that is. I did, however, replaced two of the doors with brand new six-panel solid core doors. They were pre-primed so they just needed a coat of white paint. If I used the brush or roller method, I either get the streaks from the brush or the orange-peel texture from the roller. How in the world do the painters of the new houses I see all of the time get s completely nice smooth finish? On top of that, even the paint I put on the brand new doors made them too thick to close or open without rubbing some of the paint off -- mostly on the edge closest to the hinges and stopping trim. Any ideas? Thanks in advance.