In short:
1. My name (as per the birth certificate) is spelled in Cyrillic letters;
2. My current passport transliterates my name into Latin alphabet in a way that's not very practical. Think of it as "Christine" vs "Khrystyna": both are essentially same names, with the latter being a technical symbol-to-symbol transliteration from Ukrainian – just imagine how would someone spell it here in Ireland

3. I heard many do this: get the invitation for the ceremony -> send them a properly transliterated translation of the birth cert -> get their naturalization certificate with the name spelled as requested.
For those of you who've done this, two things I wanted to ask about:
1. When do you ask the Dept of Justice to change spelling: before or after paying EUR 950?
2. When you get your naturalization cert and apply for your passport, how do you explain the spelling mismatch between the cert and foreign passport to the Gardai? I heard stories of this being a nearly impossible thing to do, but I'm wondering if that was just someone's unfortunate experience.
Thank you!