Do any steel-string acoustic players use Fast Fret? an example in this advert
It may be good, or not - I'd welcome opinions. It says that it contains "mineral oil" and I wondered if it's possible to make your own substitute, maybe for a fraction of the cost. It is, basically, a string cleaner, and possibly preserver. The likelihood of it enabling faster playing is an illusion, of course - no substitute for practice!

Thanks

Norman