Board breaking - 6 board break side kick - ITF Taekwondo Sidekick Power Breaking

Older video - In Taekwondo class. My son (Paul) doing a 6 board break with a side kick. (non-spaced, 1x12x10" standard size boards). Now comes the countdown. How long before he is breaking more than me? ITF Taekwon-do. Power breaking.