checkUPCGrandFather1: invalid checkdigit...should be 6
checkUPCGrandFather2: invalid checkdigit...should be 6
checkUPCroboticus: invalid checkdigit...should be 6
checkUPCEvanK: invalid checkdigit...should be 6
                Rate GrandFather1        EvanK    roboticus GrandFather2
GrandFather1 21630/s           --         -11%         -19%         -72%
EvanK        24183/s          12%           --          -9%         -69%
roboticus    26595/s          23%          10%           --         -65%
GrandFather2 76965/s         256%         218%         189%           --