Use S-tapping when spacing is collapsing
If an opponent is forcing messy close contact, a controlled backward tap can make them step into your preferred range. That gives you a cleaner angle to re-engage instead of trading in panic distance.

Techniques
S-tapping is about controlling distance by briefly pulling back instead of always driving forward. It is a spacing tool first and a rhythm tool second.
If an opponent is forcing messy close contact, a controlled backward tap can make them step into your preferred range. That gives you a cleaner angle to re-engage instead of trading in panic distance.
W-tapping is often about re-establishing sprint and improving the quality of your next hit. S-tapping is more directly about reshaping distance. Both are resets, but they emphasize different parts of the exchange.
Good players use whichever one fits the current spacing rather than forcing one mechanic all fight long.
Combine this page with PvP Movement and W-Tapping so the reset choice matches the angle.
Next Step
After S-tapping, the next upgrade is learning how your feet and angle make every reset more reliable.