Best way to farm gear?

Don't do multi sim beyond two at a time. That being said blue and purple gear does not drop at the normal 33% average. Not sure about blue but purples have a 10% drop rate. Meaning you only get one or two using your entire energy bar on average. And as so gear takes 50 pieces it can take two weeks for a single piece of gear at level 9 or higher. And raid gear even longer dependibg on how often your guild runs them and what it drops for you. Raids drops have a nasty habit like guild store, where they drop a crutial gear upto just short of unlocking the start dropping others. And your chances of getting them from the gear packs does not justify the cost.