Definitely, that last moulding is not "Morso Friendly" An undercut rear edge and heavy compo are a deadly combination. The second moulding is not bad and you may improve on those "whiskers' by ensuring your lower knives are as close as they can get to the blades without touching them. If the lower knives are a bit roughened it may be worth having them machined smooth. Another tip for detecting dull blades: When cutting, press the moulding firmly against the fence with the fingers of your left hand. When you make that final, shaving cut that Prospero mentioned listen and feel. The sound should be a soft ssshhh, like a librarian reminding you where you are. You should feel nothing with your left fingers. If you feel the moulding kick back slightly at the end of the cut that means a dull blade. Drop the blade and press the moulding against it and you will see a tiny gap on the inside edge. It is always that last couple of millimetres of the edge which goes dull first.