Engineer's Toolbox
I think it's mostly because ET just doesn't get used too often, much less the ore processing of it. It is a new mod to FTB. I think the lack of GUIs is interesting, but it also makes it harder to work with considering how the sheer amount of stuff a single block can do. I have to say though, it seems to be able to do just about everything. I keep meaning to learn it.
On topic (because I always feel obligated), I wonder if a topic like this is the best format for this. Maybe make a new thread for each week or something? It'd be hard to check in on the new developments if it becomes the usual megathreads these forums get.
 
				
		

 It could be cool to create armor in the same way as tools and weapons.
 It could be cool to create armor in the same way as tools and weapons.