My vote is for Black Again. I recently purchased it and have been using it in my intensive detail-in-prep-for-Concours over the last couple of weeks. I had read of some folks having trouble with Forever Black (some streaking, as I recall), so I opted for Black Again. And wow! Last night I was working on a set of tiny plastic knobs (1/2" diameter) with a zillion tiny ridges in them, and weathered/white. Tried Plexus; got shiny white. Tried Back to Black (which I have used very happily on some other vinyl); still just shiny grey. Then pulled out the Black Again -- and voila -- just like it came out of the factory. I need to do a review, if only I can stop detailing for a while.
