oh one thing i forgot to mention. if you look at the static holds, it's a total of 60s in the holds (6 sets of 10s holds). you should try to progress until you can get a full 60s hold in one set
15s x 4
20s x 3
30s x 2
and modulate it until you can get a 60s hold. after that point, you probably need harder variation to see benefit. you would have to resort to more intense gymnastic statics, or you could just focus on your dynamic motions.