For the amount of materials we need to masterwork exotic armor the return is poop. Masterworking exotic armor should be +4 or +5 for every stat.
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I'd just make golf balls more available to the average player make them a possible drop from dungeons and give one golf ball for reseting your valor rank in crucible not just the first time in a season (maybe increase Valor rank to 5500 same as glory) and give 3 to 4 for doing so in gambit since the effort is nearly tripled for gambit.