For many years I used Pigma Micron pens size 005 (0.20 mm) for underlining and note taking in my Bibles and I've found them to be excellent products. They have a consistant ink flow and last for years.
I've been developing cataracts for the last several years and have switched to using the next thicker pens available, the 01 width (0.25 mm). As I browsed the products offered here I did not find many with the 01 option, So I just want other CBD customers know that there is a wider variety of widths and colors available through online searches.
According to reviews I have read and a site that recommends this pen in particular I bought this pen. CBD has the best price and selection to choose from. The pen writes clean and clear no blobs of ink or skipping. It has not soaked the Bible paper. It has not shown on the other side of the paper...so far so good. It's archival quality so years to come the writing should still look good. Blue is my favorite color and it symbolises hope and sorrow in my Bible marking scheme. Hope you try this pen for yourself.