Hello, Due entirely to clumsiness on my part, I have caught the headlining in my car with a pen and now have a nice black ink stripe across the headlining. Was tempted to try and clean it off but then I was concerned I'd only make it worse. I've got some Supaguard Ink Stain Remover in my leather treatment kit but don't really want to try that on the headlining unless someone else has used it before and not had any problems. Anyone got any ideas? Thanks. John.