I feel like at lower amounts of resilience, I have more resi than what I would have before, like 45% to 55%, however, but at higher amounts, you will get less, like Valencia said, 90 to 74%.
Enhancement shaman is one of the squishiest speccs out there, but with quite alot of resilience I guess they are viable, but idk if they are better than ele shamans.
The extra energy will be 30, not 50 from the setbonus, although I think it will be really good and I would recommend rogues to use the 4 pieces of the brutal set.