35% for Core, looks like I just followed LR3 doc. For most other parts, I added 10% more infill beyond the recommended. Used 3 walls, and customized some other stuff, shared my Cura 5.0 profile at Purple-black-rainbow LR3 🤷♂️ , build video @ https://youtu.be/FJ7nYio8oOE - #9 by azab2c
Hoping a 3D expert out there will share an awesome Ender 3 something profile they’re proud of.