what should i do with this ribbing

hi all. working on the porcelain sweater. the body was worked with 4mm needles. the ribbing calls for 3mm needles. i didn’t have 3mm needles at the time but i had 2.75 so i used those. i have since then purchased 3 mm needles. i just feel like the ribbing shrinks in so far. it’s very stretchy and it still fits but i don’t want it to be so tight. my question is should i just block it, redo with a 3mm needle or should it work it with a 3.5, or i guess any other size needle. i also dont like how i did the bottom red so i kinda want to redo that anyways less