Paq,
"I didn't mean matcaps, just a reflection shader to control surface deviation. "
Can you make screenshot, want to look at this.

About ZModeller, people created great stuff and 10 years ago. Great stuff is more about people and less about software. There are thousands talented people that creates great stuff in ZBrush, Max, Modo etc... I just analyse facts about ZModeller and compare it with NVil and it was my conclusion. So in my conclusion I talked about soft capability, not about human skills :)