in the end i did it, after roughly 10 practices
i felt way better ice feel, now my feet are back with me again -)
it is strange, but i cannot adapt to shift holder because too aggressive angle/something else
during skate, i felt like my skates are trying to dig to the ice, and my crossovers were horrible
right now all the negative things are gone, i have a really nice boot with no issues with holder and blade