I am uncertain about the left arm of the Greek capital letter Psi. Should both arms be symmetrical or not? Checked variants in established fonts, left arm varies. Still uncertain.
Is there, or is there not a difference between the letterform of Psi, psi in Greek, and the historical one in Cyrllic? (me and my colegue are retrofitting historical fonts into a modern sans serif. That's how we decided it)
Greek - 03A8, 03C8
h. Cyrillic - uni0470, uni0471