W-tapping is a fundamental movement technique in Minecraft PvP designed to maximize the knockback you deal to your opponents. Here is how you can perform it:

 The Basic Action: To perform a W-tap, you momentarily release your W key (the forward movement key) and then immediately press it again right after you land a hit on your opponent.

 The Purpose: By releasing and re-pressing the key, you force your character to stop sprinting for a fraction of a second and then resume it.

 Combat Benefit: Successfully resetting your sprint state allows you to deal significantly more knockback to your target, which helps you maintain control during a fight.

 Timing: The timing is critical; you want to time the release and re-press of the W key to occur precisely when your attack lands.

Because you have already established that you prefer "Shift-tapping" (your Thumb-Trigger Combo) for your playstyle, you might find that W-tapping feels different, but it remains one of the most common techniques for PvP players to master.