Training and filming my swings with 20,24 and 28 kilo.
Insights:
1) I might not be holding the plank long enough the swing. This tendency is stronger the heavier the weight.
2) Weak contraction at the top. Probably a strategy to save energy so I can use heavier weight.
3) A slight twist, where the kettlebell is pulling me every so slightly forward.
4) Be more careful about where I put my head, what point to look at.
Swing is so simple, but maybe not that simple after all. It is easy to focus on progress instead of proper technique.