Ace-Angel I have tried to look through some of the matcaps at the download center at Pixologic's website and I haven't found them. It's also hard to track down these specific matcaps collection on the Pixologic matcap download center when you can't make a search on the specific artist that made the matcaps and all you have…
in true pixologic fashion. . . check the last entry in the FAQ dude : http://www.zbrushcentral.com/showthread.php?160733-ZBrush-4R2-Troubleshooting-FAQ