A method of harvesting meat fillets from a poultry carcass, wherein a poultry breast cap is supported inverse to its natural position on a carrier moving along a path of conveyance, wherein the poultry breast cap is moved past a measuring system that detects the poultry breast cap and generates information for determining an approximated size of the poultry breast cap, wherein breast meat is optionally engaged by a dynamic guide bar system, and is cut adjacent a keel bone of the poultry carcass, an outer fillet is cut along the keel bone of the poultry breast cap, wherein inner and outer fillets are separated, and wherein the poultry carcass remains are discarded.