A fluidic nozzle insert comprising: a body, the body having a back edge and a forward edge, where the body has formed therein: a fluidic supply inlet situated near the back edge of the fluidic nozzle insert body, the fluidic supply inlet having a back portion and a front portion; a power nozzle channel, the power nozzle channel having a back end and a forward end, where the power nozzle channel is formed so that the back end of the power nozzle channel is in operative fluidic communication with at least one forward portion of the fluidic supply inlet; a central channel, the central channel having a back end and a forward end, where the central channel is formed so that the back end of the central channel is in operative fluidic communication with the forward end of the power nozzle channel and the forward end of the central channel is open through the forward edge of the body; and two air intake channels (542, 544), where each individual air intake channel has a forward opening formed in the forward edge of the body and a backward opening that is in operative fluidic communication with back end of the central channel, wherein the central channel has a width that is wider than a width of the power nozzle channel, wherein the two air intake channels are formed on either side of the central channel, wherein the power nozzle channel is formed so as to have an axial setback length (SL, 586) from the forward edge of the body in the range of about 1.2 mm to about 1.75 mm such that the power nozzle channel has a power nozzle width (PW, 582) that is equal to about 0.4 mm, wherein each of the two air intake channels formed on either side of the central channel have a setback distance from the central channel defined as the setback width equal to about 1.5X to about 2X the power nozzle width (PW, 582), and wherein the width of each of the air intake channels' forward openings is independently in the range of about 0.75X to about 2.5X the power nozzle width (PW, 582). a body, the body having a back edge and a forward edge, where the body has formed therein: a fluidic supply inlet situated near the back edge of the fluidic nozzle insert body, the fluidic supply inlet having a back portion and a front portion; a power nozzle channel, the power nozzle channel having a back end and a forward end, where the power nozzle channel is formed so that the back end of the power nozzle channel is in operative fluidic communication with at least one forward portion of the fluidic supply inlet; a central channel, the central channel having a back end and a forward end, where the central channel is formed so that the back end of the central channel is in operative fluidic communication with the forward end of the power nozzle channel and the forward end of the central channel is open through the forward edge of the body; and two air intake channels (542, 544), where each individual air intake channel has a forward opening formed in the forward edge of the body and a backward opening that is in operative fluidic communication with back end of the central channel, a fluidic supply inlet situated near the back edge of the fluidic nozzle insert body, the fluidic supply inlet having a back portion and a front portion; a power nozzle channel, the power nozzle channel having a back end and a forward end, where the power nozzle channel is formed so that the back end of the power nozzle channel is in operative fluidic communication with at least one forward portion of the fluidic supply inlet; a central channel, the central channel having a back end and a forward end, where the central channel is formed so that the back end of the central channel is in operative fluidic communication with the forward end of the power nozzle channel and the forward end of the central channel is open through the forward edge of the body; and two air intake channels (542, 544), where each individual air intake channel has a forward opening formed in the forward edge of the body and a backward opening that is in operative fluidic communication with back end of the central channel, wherein the central channel has a width that is wider than a width of the power nozzle channel, wherein the two air intake channels are formed on either side of the central channel, wherein the power nozzle channel is formed so as to have an axial setback length (SL, 586) from the forward edge of the body in the range of about 1.2 mm to about 1.75 mm such that the power nozzle channel has a power nozzle width (PW, 582) that is equal to about 0.4 mm, wherein each of the two air intake channels formed on either side of the central channel have a setback distance from the central channel defined as the setback width equal to about 1.5X to about 2X the power nozzle width (PW, 582), and wherein the width of each of the air intake channels' forward openings is independently in the range of about 0.75X to about 2.5X the power nozzle width (PW, 582).