I think this is a side effect of the "Loot value calculations and the composition of the items in loot will be affected by properly matching avatar skills and gear to the creature being hunted, rewarding efficient kills with more interesting loot." The problem is trying to figure out what the hell combination works. It would be great if MindArk at least gave us some hints. I've spent hours hunting almost every mob on Ark from lvl 3 to lvl 30 and I've tried about 5 different maxed setups with high economy ratings, fast kill time, avoiding overkill, and all I can get is shrapnel and oils. IMO the system is either broken, or it's just far too complicated for me to figure out and it's time to retire. It's definitely no longer fun.