I review a special edition Sailor Pro Gear Slim (Pro Gear S) with an MF nib. It is a collaboration between PLUS and Sailor called the "PLUS X Sailor--Cherry Blossom." Goulet Pen's breakdown of the major Sailor models: https://www.youtube.com/watch?v=MNCcW07sVRc Cronicas Estilographicas breakdown on Sailor nibs: https://estilofilos.blogspot.com/2012/08/on-sailor-nibs.html