This is probably the wrong forum for this, but the mod creators increased the ore-gen in RR, a bit. Though I don't think the metallurgy ores were changed at all. Hold on to 'em, though. The next version of TiCo is getting Metallurgy support, so they'll finally be useful
In the future, it might be best to take RR discussions here, as it's on a different launcher altogether.
Sorry, I know but it was more for a private pack, and I based it of RR to go more in FTB paradigm. Strip all redundant mods, add missing one, ect...
And TiCo have in 184.108.40.206 support of all Metallurgy metals as part via one add-on.
The pack makers, KirinDave and Velotican, are still experimenting with the oregen configs. They want to encourage building by increasing oregen, decrease the amount of time you're mining basically, but they have yet to strike the balance they want. Expect every release to refine it a bit more.