Not yet, myself. But very soon, yes. Howie is one of those artists I thrive to support, but also to learn from. Picking his scenes apart in dissection lab is a great learning tools for me. Same with mmoir, 3DLust, and others. Ringo’s shaders are in my target now. Not just his shaders but those brushes, too. So I have a heck of a list going that will keep me buying for quite some time. Perusing through Ringo’s shader nodes is an excellent learning tool. Beyond that, he’s such a swell person!
Part of my reasoning for building ►►► Carrara Resources ◄◄◄ was to assist myself in knowing what Carrara-specific products we have here, at DAZ 3D. I am finding that these resources are much more that just a cool product - but another fun way to learn other ways of doing things in Carrara. Well, then a cool product, too!