I have had the Iwata HP Cplus for a few weeks now and loving it generally, until my first major clog up. Not fun. Got everything totally clean (or so I thought) and still no paint coming out, until I realized the very tiny nozzle was plugged. The needle would not go through. I soaked overnight in Createx cleaner, and tried to get the paint out, with a toothpic and interdental tool, but no luck. I soaked it some more in nail polisher remover, cut a toothpick down the center and filed it round, very small. I managed to push out the tiniest sliver of dried acrylic paint, and that is what did it. Without lots of patience and perserverance this baby would remain clogged.