I had not actually ever used this way of easy loading the gun so I thought it would be interesting to say few words about it. I mainly used power regulator lower power switch just to diminish outgoing speed of the spear. But that switch also has easy loading purpose. You can not see it working if you load the shaft in one continuous motion. In that case the loading would be actually more difficult. You'll need some additional power against the valves spring resistance ( it is about 2 kgf). But you can load the shaft in pumping motions, down-up, down-up, until you latch the piston. It is similar to the action of the hammer. Instead of pushing on the nail head with the hammer to get the nail in a wood you hit the nail with a hammer.