I tried this stuff on a body a couple days ago painted with Tamiya TS-26. Needless to say, I was not impressed. After two days, it didn't even soften the paint, it didn't even come off with a tooth brush... And yes, it was the normal yellow stuff.
But I sprayed the body in mineral spirits, the paint was softened up completely within 20 minutes So mineral spirits is my paint stripper now, it doesn't melt the plastic.