HAHAHA DONT DO THAT! Your suppose to buy simulation seeds because brother vances shaders dismantle into shards, all the other vendors shaders only give glimmer. you need somethin like 6000 planetary resources to guarantee an exotic drop , 1 shard = 5 resources so you need to have 1000 shards in your inventory to guarantee just one exotic. and this is not a glitch.
Brother Vance is an enhancement core farm tho. He's got like a 40 percent chance to drop masterworked crap.