I find the “hold and drag” function for more precise control hard to use.
This usually results in changing values already since it’s hard to drag horizontally pixel-perfect…
And accidental horizontal movements (while dragging vertically) make the function even harder to use.
I much prefer “hold shift key” for fine tuning.
Using the mouse scrollwheel to change in steps would also help a lot.
(This is already possible with global adjustments after a mouseclick and I use it all the time.)