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So, I tried to make a brush, when size become smaller with higher pressure, and transparency become stronger with pressure. But I always got big point in the end of stroke. And very rare, with slow end pixel stop stroke, I got willing result.
Is it way to make brush with right effect?
Also I don't quite understand how graph of the brush size correlates with the stroke preset in brush options - I have high pressure stylus in middle, those logically in preset the peak must be in 25-30% range at the beginning and the end, but preset illustrates it in the range of 10-15%.

No, this graph you resent means that value small at gently pressure, large at medium pressure, and low again at hard pressure. By other words - X-axis of graph is a pressure, Y-axis is your value. Also, better set stabilizer to 10 or higher, not a 0