@tvor-ceasar I completely agree. I just got back from vacation so I haven’t been able to run the numbers, but it does appear that the data in WinISD is off. When I did check this driver earlier, I was getting some similar results to yours.
@Rich try to re input the driver data because I think you put it in incorrectly. If I get a chance to tomorrow I’ll send you over my driver data so you can load it. Maybe you can see where the differences lie within the data so that you can correct your file.