If I plug in the values from the SWG chart from above, I get different numbers in the suggested FC blue section for shock and SWG target. For instance, at 60 CYA, it reads 3 and 18 whereas the table reads 4 and 16. When I mouse over the 3 it confirms SWG FC Target 3 when it should be 4. Maybe it's supposed to say min target in the calculator?
Also what does Normal mean. The range for a 60 CYA from 5-9 seems way too high for a SWG.