Pro-test! Effective!
The calf can't be grasped with both hands, but it is more than enough.
After doing it every day, my legs are weak and I can fall asleep after a rest. There is no comparison chart, because I gave up another summer vacation and my leg was swollen again.
This is a very good video, keep it up!
And there are other parts in this series, you can try them all.
Last but not least, stretch after exercise! Get up the next day and your legs will look good.