Thanks SE. . .

[Peregrine]

Yeah it's very tough to say. The math involved to rigorously prove it is also quite complex, because you see more first touchups than 6 touchups, AND you stop touching up if you get certain qualities given certain remainders, AND once you hit a certain result that result locks in. most people who would go about trying to prove it would miss major design flaws.

So players do a lot of things to confound the answer.

For high-quality, the need for 2 more bolds is piddlydink, so yeah get to the end asap, but if it's the difference between 85 quality and 100 dura or 107 quality and 65 dura, I'd go with the latter.