Here’s a brand new video of Jonathan Sexton and Paddy Jackson at Goal Kick training. These two Irish players are ranked four and five respectively in the Six Nations Goalkickers by goalkickers.co.za.
Sexton and Jackson have very calm and measured kicking mechanics. Notice they are striking the ball very easily and not pushing for too much.
The only improvement to be made lies with Jackson. Notice how he restricts his natural follow through with the kicking leg and his entire body.
Sexton, on the other hand, kicks the ball and has a generous follow on after the strike. This will allow him more power by using his momentum.