Hi guys!! I require your guidance and expertise to try and make my own Blue Blacks. What I have at hand are the 40ml bottles of Parker Quink Black and Quink Blue. I was wondering if I could mix and make my own blue blacks using these two. I use a Lamy Safari F and 1.1 nib for my daily writing. I use ordinary notebooks nothing fancy. Could you please give me a ratio that would give me the right color for the ink or your favorite blue black color? I want it to look dark but not too dark that it really looks black. I hope you got me. How do I mix the inks the right way? Anything else that I need to look out for when mixing these shades please let me know. Thank you all! Pete :")