It's difficult to say since it may be different between people, the capacity to detox PUFA and is probably also influenced by the amount of stored PUFA. I've heard of 8g as the upper limit for linoleic acid. Still allows an egg or two. I think there are some risk factors with restaurant foods and other hidden PUFA, for example even if they use butter it might be adulterated, the same goes for dairy products. For me what helped most was ditching pork and olive oil. I might try giving up eggs for a while too since I'm plateauing.