User blog comment:Kogath/Monster Hunter 4 Ultimate for the Nintendo 3DS/@comment-5933391-20141026214422

Even though the all mighty Nrgacuga chest piece was nerfed there's still plenty of over powered chests we can use all torso up armors on.

For example, the Kushala X armor has 1 point of Handicraft, 4 of Evasion and one of Focus. Using all torso up pieces and a Handicraft +5 charm you could get Sharpness +1, Focus, Evasion +3, and either Bombardier or Speed sharpening. You could also get Sharpness +1, Challenger +2 and Evasion +3. Adding better charms and weapon slots just makes more possibilities.

The Akantor X chest has 2 points of Handicraft, 4 points of Expert and 2 of Hearing Protection along with negative 2 points of sharpness along with 2 slots. Using a charm with just one point of sharpness could get you Sharpness +1, Critical Eye +2, Earplugs and either Challenger +2 or Evasion +2.

The Nargacuga Chest might not work for the Torso Up sets anymore but theres plenty of chests that still work just as well, I'd argue they work better.