A distinct type of Thrusting Finger Technique which is physically distinguishable by striking in a linear, forward and upward direction - making contact with the tip(s) of the fingers of the hand, palm pointing upward.

Comments:

Ideally, this maneuver is enacted with all four (4) fingers, but this is not a requirement.

The ideal execution of this maneuver is at a slightly closer depth than the vertical thrust. Most typically, the tip(s) of the fingers would stop at the same depth as the base of the heel of the palm of the vertical thrust at the conclusion of its execution.

From one perspective, this is just an uppercut punch with the hand open.

As stated above, this strike has a Snapping equivalent which is not specifically called out.

The word upward, in this case, refers to the orientation of the hand along with the vertical direction of the maneuver.

Although ideal execution of this maneuver is in a forward direction, it may also be employed to the flank - like the side thrust. This is due to the fact that the naming refers to orientation - not horizontal direction.