Here's the link to the forum thread
. It's still a work in progress so right now it doesn't add too much to the game, but it was at a stable enough point that a lot of my friends enjoy using it so I figured I may as well release it and update as I develop. My goal with the mod is to add some utilities that (in my opinion) improve the general flow of the game. I'm focusing on developing them with the main world-gen mods I use in mind.
With COG I personally enjoy playing with veins set to super rare (like 10-25%) but their size set to 150-200% (which I believe actually gives less ore than default COG settings). In general though I find the only really viable way of finding veins at times is to go to the related biome and branch mine until you find one - and the reason I have COG is to discourage branch mining.
In the first release the only thing in my mod are prospectors, which are my attempt to create a non-overpowered tool that players can use in a survival world to help them find resources when they have COG installed (works in vanilla fine, but isn't really warranted). Functionally they're at a place that I'm happy with, but like I said my goal is to make sure they're balanced and I plan to actively keep tuning then as needed. Effectively I wanted to give players an alternate method to search for resources, not a flat-out better one.
I have a few more ideas for addons I plan to add that closely relate to mining (more specifically to infrastructure setup). After I've implemented those I'm going to branch out into other parts of the game. Basically the mod pack isn't going to be a full tech-tree like Thermal Expansion or Thaumcraft, but the mod's theme will be much more focused than something like Open Blocks or Extra Utilities (which are all awesome mods, so nobody think I'm bashing them, just using as an example).
While I do have a lot of ideas, I of course always greatly appreciate more ideas or feedback on what already exists <3