I have to apologize for my stupid questions.
It turned out that I just incorrectly declared bitfield ft-load-flags (my flags started from 1, ought to be 0) and what I thought was FT_LOAD_DEFAULT was in fact FT_LOAD_NO_SCALE. So Ft_Load_Char was not working as expected, and no scaling was applied either! :)
Beg your pardon once more, Dmitri