Has anybody sold large batches of cards through COMC? I have a tonne of 2017 Optic that I need to move on. Cards are all doubles from my trying to complete the rainbow masterset and are a mixed bag of base veterans and rated rookies - base set, coloured parallels, SP, etc. Selling them individually isn't worth the shipping costs with international postage from Australia being a killer. Would it be more economical to post it all as one to COMC and get them to handle the listing, selling and posting of individual cards? I would be happy to get anything back for these.