Have you tried the "no line coloring"? I did, but it's late and I'm so tired I couldn't concentrate! LOL!! I ended up making the lines slightly lighter than usual. I remember first seeing the technique on Amber's blog way back in September '11, I know right! I most recently saw the same technique on Ruby's blog. I love both of these ladies' work!
Well here's my card:
I really love the softer lines. So go ahead give it a whirl....especially if you're running low on ink! LOL!