Vyral.9846

What is the advantage of the Silver-Fed? It gives an extra 5% chance of salvaging "rarer materials", a 20% less chance of salvaging upgrades, and costs twice as much per use. What are these "rarer materials" it speaks of? Ectos? T6 materials instead of T5? Does the extra 5% bonus in gaining them outweigh the 2x cost per use and the loss of 20% salvaged runes/sigils over large numbers of salvages? Now I am kind of bummed that I bought the Silver-Fed when the rune/sigil changes went into effect.