You need Extra Tic for it to work properly, however it is still in alpha so expect some bugs.
I've played around with it a bit and no apparent bugs. The reason it is still alpha is because you can't yet make the metallurgy ores into actual components, just use the smelter to melt them down and make the alloys, rather than due to bugs.
The TCo API allows for you to pretty easily add more metals to the smelter reactions list without fear of bugs. It is all those graphics for every single tool in every single metal that is slowing development.
Psst.... Hey Max.... Think I can get a copy of your modpack???
Atm, Can't be bothered setting it up myself...
You can once I sort out some of the nasty little item conflicts. Also still doing a lot of testing on Better Archery, not sure if I should leave it in. No known bugs, but still in bug testing alpha.
That and I want to get More Everything to add various aspects to mod items that would otherwise be unresearchable, and that is taking a little time. When I'm done it should be a really nice Thaumcraft pack though.
Debating if I want blood magic or not... Also forestry, just so I can add the magic bees in, but then I'm making this all fantasy themed, with no industry, so that is a little bit of a turn off. Lots of choices to make.