I like the idea to have Iray shaders for Michael 4 and I wish, there would be more for him (and Vicky 4 too). And it is really no problem to batch skins, created for M4 to Genesis 2 Males. It's also possible to convert the whole shape of Trystan to G2M in Studio.All you need are the right tools.

Your shaders looks great and I would like to know, how one can get them?