After reading the comments about the Hammermill cardstock for Copics I decided to try it. It was only $12.40 for 250 sheets
and free shipping
Amazon.com: Hammermill Color Copy 80 lb 8 1/2 x 11 Inch Photo White Cover Stock 250 Sheets (12002-3): Office Products
Well let me tell you this stuff is wonderful!!
I stamped a flower image with Memento and colored the flowers with reds, because reds bleed the worst. I had NO bleeding using reds on this cardstock.
I have tried Staples cardstock and this is superior to that
It works as well as Neenah Classic Crest Super smooth and costs 75% less money
It feels exactly like Gina K's Pure Luxury layering weigh but it is a tad whiter