They probably just forgot to change it.
They meant for AE2 to be fairly late game
I don't think so. The Grindstone is NOT a late game thing.
This is from the AE2 website:
"The Quartz Grindstone provides a low tech solution for getting more out of your mining trips. It is much cheaper than its more high-tech counter parts of other mods..."
In the past I don't have problem with mining quartz in early game, it is just in the 1.7.10.
I don't know what is boni doing, but as IT evolves, I find more and more nonsense and annoying things in this mod by default.
Anyway, can someone tell me, in Iguana Tweaks, exactly in what config file and exactly what I need to change to be able to change the mining levels of certain ores? In the default config files, I can't find anything about any mining level. I never needed to change mining levels, so I never do it, and I really can't find it out how it is possible to change mining levels. English is not my native language, so maybe just me who don't understand what I have to do.