It's been two weeks I'm doing this set, and I'm still improving. My results (in color) are here:
I tried to increase the SPL range to reach 1.0 to see when and how my SPL explodes. Then I decided, in the idea of not practicing struggle, to avoid 18 SPL and higher.
I must say 1.0 SPL feel really (too) fast. Does anyone feel comfortable at this speed? For me 1.3-1.4 is the maximum I fell not rushing.
I must say the 2.0 SPL allows to feel the water variation in my grip. That became my new palyground for experimentation.
I also noticed that without TT, I can't reach 15 SPL or less easily. This is my new area for improvement.