The Gravitas Pocket Pen is another answer to a question that I didn't know anybody asked. Before you aim your flamethrower my way, let me explain why I said that. The object "Pocket Pen" is such an oddity to begin with. Most people would not put an object into their pants pocket that has the potential to leak strongly colored fluid into things that should not have their color changed. Pants pockets are at a location on the body that is usually in motion in a variety of ways. The potential for damage of non-flexible items is probably highest in pants pockets out of all possible pocket locations. And yet...here we are. Gravitas Pocket Pens, for the most part, are made out of metals which are more damage resistant than plastics. The materials used have to be thick enough to resist bending and breaking while the owner's body bends and moves in ways that make structural engineers weep. And the pen has to be short enough to not interfere with freedom of movement while being carried in said pants pocket. Ben Walsh's engineering have solved those problems by making Pocket Pens out of a variety of materials that are able to survive the rigors of Pants Pocket Carry without mechanical or material failure. Keep in mind that most pants pockets also contain a variety of other objects besides a pen, and their interaction inside the pocket will lead to scratches, nicks, and marks that probably won't buff out...which is the main reason why I don't want to put a pen with a coating (paint, PVD, Anodize, DLC, etc.) in my pocket. Eventually, the coating is coming off. Some come off in a couple of weeks, some take several years, but sooner or later... So, why buy a zirconium pen that weighs 11 grams less than the stainless steel pen, and 26 grams more than an alumin(i)um pen? Because it's more scratch resistant than titanium, but still workable with industrial tools...barely. The pen is virtually flawless: the nib is smooth, ink flow is wonderful, fit and finish are awesome, the grip diameter is not too skinny, not too wide, and the micro grooves prevent finger slippage. In my opinion, grip size/shape has more influence over how well the pen feels in your hands, and how long you can write with it in one session than the weight. The only thing that couldn't be overcome is the inability to accommodate a full size converter. But there's an Entry, Sentry and Flagship pen that provide the same awesome engineering, same nib sizes, and room for a standard cartridge converter!
