The Cycles Disney BRDF by Pascal, while hard coded, doesn’t necessarily provide any speed, usability, or effeciency boosts. The updated version of my shader group, as part of the ONELVXE Material Pipeline (http://www.onelvxe.com/material-pipeline) is a seamless solution for authoring materials quickly and efficiently. The entire suite of nodes coupled with the plugin allow you to quickly bridge work done in programs like Substance Designer, Quixel, and Mari straight into Blender