This is impressive coaching with a focus on technique. Bravo! Now, this is based on the silliness of the game as it has evolved. A player tackled to the ground SHOULD be "free play" ie defender should be able to step over him/her and pick the ball up as it SHOULD have been released IMMEDIATELY...not this 9 second (I've counted that often) hold of the ball until support arrives that necessitates a "jackler". There is as you train this technique NO RUCK or MAUL so the ball should be freely available to the first to arrive at break down, or if defender(s) and support arrive at the same time, teammates bind together to drive the others off the ball....AND the Tackled player all this time SHOULD be making every effort to "roll away". All that was spelled out in print in the LAWS for many years up to the last time I read them ( in a rugby post) which was 4 years ago. Italicized was the binding of players in the ruck "up to the armpit" and that fingers on a jersey was NOT a bind. Seems refs at top matches have missed these details. The Laws to protect jackles is a step in the right direction, but unnecessary if the Laws at the breakdown had been followed for the past 20 years.

Great drills

So, with the rule change for this season, is it no longer legal to tackle the Jackler round the legs? GLOBAL LAW TRIAL - Law 9.20.d A player may lever the jackler out of the contest at the ruck but must not drop their weight onto them or target the lower limbs.