1: If your pasta is "glopping/sticking" during / after extruding, You are using too much water. Play with your recipe.. Water and flour(semolina) or  Water and Egg(AP)
2: Yes, the disk are a "REAL PITA" to clean.. Clean them ASAP, or let them sit in boiling water. I nuke a coffee cup with water to do this.. Add disks after you nuke, not during. And, I think they might separate.. My spaghetti on does..