Since you guys were slow on the draw
I got to playing around with my Thunder 380 over the weekend. I took it apart and removed the safety/decocker lever from the slide. I cleaned everything up with Hoppe's spray solvent and lightly sanded the lever with some paper. I scraped out the depression on the "other" blind side where the end fits in to remove crud and lightly coated the assy. with grease. I put it all back together and that seems to have taken care of the stiff fit of the parts because now the safety/decocker lever works much easier. Still can't sweep it off with only my thumb but I don't plan to need to. It works and I'm happy. I got some video help from YouTube docv73 which has a series of videos of a guy taking down and reassembling a Thunder 380 pistol completely. It was quite informative and you might want to check it out and save the address for future reference.