I have 3-4 spots on the sensor of my K1MII. With the closest repair shop 2 hrs away, and not overly thrilled with shipping I'm between a rock and hard spot. I first tried a blower, then the Pentax recommended Goo stick, and finally a wet clean kit. Have also performed pixel mapping. Nothing seems to faze them. I can see them with a sensor scope, but can't tell if it's dust, stain or grease/oil. Anyone have any ideas?