I have read the charts and diagrams and asked Mike over at ATARMOR and wanted some advice before i pull the trigger on a set. I measure out at 10.5 and 12.5 or sapi medium but borderline sapi large. Should I just for good measure go a size up? I have had velocity systems shooters cut plates and they were too small but also had paraclete 10x13 and those were a smidge too big and couldnt shoulder my rifle too well. carrier is a mayflower apc l/xl