From what I can gather, every IBU calculation formula has it's flaws. Sometimes the calculated and actual results are vastly different. I mean really, really different.
So, the only real reason to attempt to calculate IBUs is to come up with some sort of subjective standard or give a rough approximation. Also, some formulas do better in certain conditions. For instance, one formula might be better at calculating IBUs when a lot of late hopping is employed.
As such Beer Smith's global setting for IBU calculation is too restrictive. I think there should be a system default, but the user should have the ability to change the formula on a per recipe basis.
So, the only real reason to attempt to calculate IBUs is to come up with some sort of subjective standard or give a rough approximation. Also, some formulas do better in certain conditions. For instance, one formula might be better at calculating IBUs when a lot of late hopping is employed.
As such Beer Smith's global setting for IBU calculation is too restrictive. I think there should be a system default, but the user should have the ability to change the formula on a per recipe basis.