Yeh they mean input pressure from the inline reg (ie the pressure that will hit the ball itself), The newton kit has a balanced valve which means that it barely requires any force to open it, it means you can have a very low ram pressure, a shorter dwell and an extremely light rammer since very little inertia is needed to open the popet, the angel newton kit pwns the lucky kit for the ego, pwns it and then spits on it, and then stabs it in the eyes with a Hb pencil, and then goes round its mothers house and makes a bad smell in her porch.