Since I've primarily switched to joints over glass, it occurs to me that I might not want to sift out the keif and get it all in my jays. This idea was furthered in my mind by this video. So I'm looking for a good two-part grinder that grinds finely--not to dust, but fine enough to get a full gram into a 1.25 cone. I rarely get into my keif and usually leave it in my grinders, so rather than let it lose freshness and potentcy through oxidation, I might as well use it immediately, or at least try it for a while. Any recommendations?