Either tombow markers suck or shading with marker in general sucks because there isn't much control over varying degrees of darker and lighter grays. And I'm too broke already to buy new markers to try to shade with until next month, so I'm stuck shading like a retarded child that sniffed the markers a little too much. If I try to darken the gray, it shreds and tears up the paper. And I only have N95 and N75, N55, N45, and N35, so I can't even adjust to say, N81. #shading