My SLX came today! It's a nice solid grinder, looks a bit more dark grey than black, but looks good in any case.
Just ran a huge bud of sticky, resinous Jack OG through it. Very smooth action, no friction at all (though it still has the grinder scraping sound). Holding it right way up, it demolished a full grinder of sticky material in about 10 seconds/4-5 turns. The result was an even, coarse grind.
I put the bud back in and held the SLX upside down, and gave it a good 8-10 turns before flipping it over again for another few turns, to get the green back into the chamber. This time I got a fantastic looking fine grind: I was expecting something closer to powder, but the green is so sticky (and the ceramic lining apparently that effective) that the material is loosely sticking together and 'clumping' in the chamber: it seems to be 'repelled' by the lining.
One thing you can definitely notice is a complete lack of tricomes and hairs in the grinder itself. I mean a
complete lack of crystal build up, I've never seen anything like it. However, the grinder itself had a few tiny dots of green remaining inside here and there (have I said it's sticky yet?). I banged both parts together and the vast majority fell out, and what didn't fall out brushed away with no effort using a short stiff brush.
The downside: the 'design' on the bottom is terrible, why would you make a grinder this good and not put any effort into that kind of thing? Oh well, a small quibble. I'm gonna see if I can iso it off.
But so far I'm very happy. Let's hope it continues to work and everything!