Help; Guys I'm a very small remodler who was losing jobs because I could not get Tapers to show up to tape 6 or 8 boards.In the winter no problem, in the summer forget it. So I foolishly got talked into a tube and boxes guess what?, I bow down to you that do this "art". Anyway my problem is I'm unsure as to how thin the mud should be when I'm "trying" to apply tape with the tube. My biggest problem is corners. I've got too much money invested so I'm begging for help.