My Jet 6" Long Bed Jointer is driving me nuts, I have checked out a lot of YouTube videos on the subject and, as best I can tell, my jointer setup is correct. Its infeed and outfeed tables are parallel and the blades are set just a touch higher than the outfeed table. The problem is that no matter how many times I feed a board through the jointer, it doesn't get any flatter. In fact, it gets worse. My technique is to hold the leading edge down very lightly at the start and then increase the pressure after the first few inches of the board have been jointed. This seems to lift up the back end of the board and I wind up with a bowed rather than a straight board. I don't remember having this problem with my previous jointer, leading me to think that it is a setup problem. On the other hand, it has been a while since I have used a jointer so maybe I am doing something differently. Any constructive suggestions would be appreciated.