I used a 60 minute boil. I didn't get any cattyness, but my wife did. She got it more during the whirlpool hopping than throughout the boil though.
I'm not sure, but I think the FWH combined with not having a 60 min addition leads to a really smooth bittering in this beer. Definitely brew it and let me know what you think. I don't think you will be disappointed.
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