Yes, the litre container, especially for a full-sus frame. It brushes on (nice and thick) and after a few minutes the paint will just bubble up and start falling away. As I said, a small brush is best for working it in on stubborn parts – paint tends to quite thick at the welds, for example. I’d recommend staying away from scrapers, even plastic ones, unless you intend working them out with a high polish.
I use clear frame stickers (visible just above the BB on the SX TRail) as hoses and cables will rub/polish the raw metal. Doesn’t matter if you’re not bothered by this, of course.
The good thing about stripping is that there’s not really any harm done. If you don’t like it, it’s off to the powder coaters.