Comments like this always make me smile. Every action in fencing has its strengths and weaknesses. There is no action that is Undefeatable. Yes, if someone only uses this timing it will be very easy to learn the timing and defeat the action. If I extend my arm earlier then this, I could hit you sooner but that action is easier to parry. If I extend later it becomes harder to parry but I’m vulnerable to being caught in preparation. This is only a portion of the full video. In the full video(available on my Patreon page) I give several different timings of when to extend the arm. It is always important to switch up the timing of your attack. It’s much like the game “rock, scissors, paper”. This action is very effective against “rock” but it can be defeated by “scissors”. I’m glad you feel confident but don’t let your confidence blind you from learning.