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…
Grant's pack is still on pixologic's site I think - or at least it looked like it was a couple of days ago when the work firewall blocked me from downloading it. The last I heard Grant is training to become ironman and never wants to see a computer again (may or may not be a mild distortion of the truth)