Online Copic Class - Day 3

Day 3 covered using shades of gray to add shading, rather than a darker color in the same color family.  I had a real problem with colors bleeding and I'm pretty sure it's my paper.  I've ordered some Neenah Solar White but in the meantime, I've been using G-P 110 lb. and it just doesn't work well with Copics.  I normally use CC Designs Copic Quality card stock to color my stamped images but that paper wouldn't feed through my printer.  Sure hope it's the paper's fault and not the rookie colorer!! :0)