Why is the Picasso Century 90 equipped with a 140 cm and not a 130cm spear?
The reason why we equip our spearguns with a spear that is 10cm (4″) longer than the other brands is that because you can aim better with both eyes open, like with a shotgun (think “skeet”), by aligning the pin on the muzzle to the tip of the spear. It is a lot easier and more accurate to aim at the fish with both eyes open and the speargun placed below your face, so that you can track your prey at all times, no matter how it moves, even if it suddenly goes down, below your aiming line. If you aim with one eye shut and straight, fitting the “aiming” pin on the muzzle inside the groove on the top of the gun’s handle (like aiming a riffle on a small and distant target), then should the fish move down, it will disappear from you field of vision and you will have to move the gun away from your face to track it which may be too late.