@Chikitin hello,
You are welcome! 
Well, I suggest you to try with single Expression Maps set, e.g. the one for EW Solo Violin.
First: Duplicate the Expression Maps set and save it under different name e.g. EW Solo Violin Test
Then turn off the Use Secondary Dynamic for all techniques and save it. After that select EW Solo Violin Test as an Endpoint Configuration and make a test.
If it sound’s better, then keep this Expression Maps set.
We have to be very careful with the secondary dynamics, because Dorico tend to automatically humanize some automations and the sound during the technique change could become, or in a group of instruments could become unbalanced. That’s the main reason I didn’t involve Secondary Dynamics in my Cremona Quartet Playback Template. You could check it, if it’s interesting for you.
Best wishes,
Thurisaz