Wondering what you all think is the notebook that lies the flattest. Right now I use Aqua Drops from Lihit Labs which I got from Amazon and/or JetPens. Excellent quality paper for FPs. And has twist ring, so you can remove sheets. But it would be nice to have a notebook that was flat enough that I didn't have to remove paper to write on it then re insert. Looking at the Habana but haven't purchased yet. Using 3 TWSBI mini vacs, a TWSBI 580 all with broad nib.