Hi,
What do you think is better?
A) Working on full sets and reps with rest needed so as to complete all the sets with all the reps. For example, 5x60'' plank. Then working on do this sets with less rest between sets until you get it only without the rest of integrated mobility.
B) Working in short sets that you are able to complete with the rest of the integrated mobility, until you are able to add the total volume with that rest.
C) Both are good. It depends on what do you prefer.
Thanks.