String Theory Colorworks review for Retail Barcode Labels

App reuses barcodes for multiple products, which doesn't help me with the automation with over 350 products each with up to 14 variants. Also, it would be helpful if I could select what label I would like to begin printing on for the label sheets, as it is extremely rare that I have a full sheet of labels I need to print at any one time, and I abhor waste.