Beautifully smooth with not really many inconsistencies in the lube job. Long pole, long spring, everything I like in a switch.
The Black Sesame switches are, for the most part, are smooth. Of the ninety or so that I've tested, only a few I deemed unusable as stock (scratchy sound or feel). The sound of these switches are really good and they rival my hand lubed Gateron CJs. Although, there is but one small problem with these switches, and that is that a majority of them have this strange noise when pressing down the switch. It's sort of like a high pitch ticking sound. At this point in time, I'm not sure if it's coming from the leaf or the lube, but it's definitely there. But despite this small flaw, I think they're a good switch that's worth the price.