i had just come back from a RKC workshop of 2 days...lots of interesting things about mobiility test througth RKC-Russian Movements Screen, strength kettlebel training for explosive gluteus strength, improving legs flexibility for splits & an introduction ti indian club..
with a great introduction to movements 1,2,3 i saw the great utility to increase shoulder mobility, active and dynamic boths, coordination in boths directions..
i think them can be very useful but the movements are very very difficult to learn from a pattern point of view..
just for movement 1 we spent 2 hours of theory..
using indian clubs related to other movements as turkish get up the mobility can improve drastically!!