That is the way to do it hit.
Today I trialed this MTN Tough day. Couldn't figure out how many reps of the 30s plank we were supposed to do, so we did 5. Had 55, and 2 10s, instead of 60+2 20s.
Then did a bring sally up pushup plank.
Na, I had less weight than I was supposed to.You did extra , nice work