So I was advised to try some FWH additions with low-alpha nobel hops to increase their efficiency and flavor. But...when I change the hop addition in the editorto FWH it lowers the IBU rather than increasing it. Since the same hops are in for the wort through the boil, it seems that the editor should recognize that the hops will be in contact longer rather than shorter, but that's not the case. Is there a good way to estimate the additional uptake when using First Wort addition rather than just boil addition? I doubt that accounting for the same hops twice in the editor(FWH and 60 minute boil) will give me an accurate count, but maybe?