flow calbration

simple yet effective flow calibration. walls should measure 2mm Rough flow 1.1 to 0.85 flow highest to lowest left to right pick the one that measures just under 2mm walls on average Fine flow 1.05 to 1 flow now pick the one that's closest on average to 2mm after that your can take it farther and do the same for your top layer. original flow value is 0.96