Just a quick question, you won't get banned if you say yes because there is no proof you ever used it on MV so relax.
I have 3-4 clients 2 of which i used for months and was never caught. I personally enjoyed reporting hackers and never getting caught most of my reports were me pissed that my client wasn't working as good as the guy attacking me.
I don't even have optifine. No clue even what that is, nor how to download it. Let alone any of those other things. It's funny to me when I'll be on kitpvp and someone accuses me of hacking... Like, I'm so bad at PVP that i'd loose even if I did use hacks.