Office Depot has composition book graph paper, made in Vietnam, for $2.00. I bought four and took them home to test them out. They worked great, so I went back and bought four more. Virtually no show through--just a bit of ghosting, and no problem at all using both sides of the page. I tested it out with the following combos:
M1000 EF with Pelican 4001 Brilliant Black
M800 EF with Private Reserve DC Supershow Blue
M400 F with R&K Alt-Goldgrun
MB 149 F with Diamine Denim
I was pretty impressed with these notebooks. Even though each of the pens I used are EF-F, they are wet writers. The PR DCSSB and R&K are really wet inks. No problem with any of them. I don't have the notebook with me now, but if interested they have soft gray paper covers (not stiff like the typical composition books).