I know for selling its best to group things together, for example same size pins, however dose it matter for a toll refiner? I estimate in 15 years I will have enough. I keep pins together, gold fingers together and then everything else. I'm just curious if I need to do more that that. I don't want to sort these little tiny things, if I don't have too. Just curious about your experience, I have glanced at gold refiners forum a few times and it dose not seem to matter.