True gaming keyboards have mechanical switches which activate on first key press, not on full key down. Bit disappointed no mechanical keyboard was tested as they are perceived to be the ultimate keyboards when speed matters.
Mechanical key switching activate differently based on the switch. Most with feedback activate on the feedback, ie. when you hear/feel the click. So it isn't first press or full key down, but somewhere in the middle.
The most common key switch for gaming oriented mechanical keyboards is probably the Cherry MX Red. Its actuation point is around 50% of the way through the key travel.
Buckling spring switches, membrane domes, topre (membrane dome + spring), etc. all have actuation points somewhere in the middle of the key travel, not at the start or end.
