WELL... To me, these are an absolute necessity. And if there was a set GIN, I would have had to use it, to make sure I won the listing (as long as it was reasonable... I would have done up to 50,00). I can't say I would have been wanted to use the GIN for all the other artists (whose earrings you also have), but chances are, there will be somebody who would. Maybe consider setting a GIN for the others? Might help u get more credits for them. =)