Hi there ! I was so hype to go this mod in the modpack i build but i just encounter an issue with it.
In the previous version, i could go mine in the classic way, and "choose" to use your ores from the mod if i want. Now i've just start a new world (to test it) and i can't get iron if i have stone tool. Like, we need to really use the material durability chart (provide on the main page of EasySteel). Oh and some other thing like, while testing, it says i need diamond pick to mine Deepslate Gold ore, even if gold is before wood in the chart. Is there a way to configure this ?

Edit:
MC 1.20.1
Forge 47.2.18
Optifine 1.20.1 6HD
EasySteel 1.20.1 1.7.3
and 140 other mod

Ok, I think I got it fixed in latest release. vanilla tools tested correctly as well as easy steel tool mining levels

Work A1 ! Thank you! That was fast :D Also, as an issue, it could be exploit to make the game harder. With kind of leveling in grade for tool and armor. You should think about it !

It seems as though I broke something in vanilla. looking into it.