As part of my dailies, I'm mining enough 4* to have about 12m in reserve. It seems like the middle pull for 2* and 3* was always the sweet spot, but I'm not finding similar thoughts for 4*. I'm still doing the single crate pull, twice a day. So--is there a sweet spot for crate pulls at 4*? Should I go to 2 crates or 3? or stick with 1? More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.