With the latest version, when I try to make an arrow with feather fletching/any tinker's construct tool rod/any metallurgy metal, the arrow cannot be made, and when I use both an arrowhead/rod of metallurgy metals, the game crashes instead of showing the potential resulting tool.
Yeah, not the -normal- problems, but the problems of hardly-useful-for-the-hour-it-took-to-get-a-few-of-these problems, yeah, do it. Mob spawn killers are very difficult and you're rarely around to collect their stuff. And I only said a dozen, not 64/64/64/64/64/infinite, jesus christ.
No, really, detonate one at a time in various different parts way deep down, you can clear through things easily and much faster than flat out mining. A dozen diamonds in 10 minutes with only 30 or so TNT used, nom.