Quality Assurance Trait - Negation of the Good Proc Rate Penalty

I tracked the rate of goods and excellents on 66+ recipes with and without the Quality Assurance buff. This was mostly out of idle curiosity to answer questions like:

- Do 66+ SB recipes have the same "good rate penalty" as 56+ HW recipes?
- How does the good proc rate compare to level 60-65 recipes?

So I tracked the goods and excellents on level 68 recipes (stuff like Twinthread, Molybdenum Ingots, Gazelle Leather).

Without the Quality Assurance buff:

- Goods: 188/1675 = 11.2%
- Excellents: 25/1675 = 1.5%

With the Quality Assurance buff:

- Goods: 180/1196 = 15.1%
- Excellents: 14/1196 = 1.2%

And for reference, pre 65 recipes with no quality assurance had the following results:

- Goods: 304/1843 = 16.5%
- Excellents 24/1843 = 1.3%


My conclusions:

Other than needing a larger sample size, Quality Assurance mostly negates that good drop-off that we see on level 66+ recipes.

No conclusions on excellents since the rate is so low. Consider the proc rate might be 1.5% or so, I'd probably want to see 10000 or so steps captured and I'm not prepared to do that.

My thoughts:

I'm not quite sure what the point is of this trait. SE penalizes the good proc rate for recipes above 65 and then removes the penalty if we do the class quests? Is this because many people didn't bother completing many of their HW class quests until late into HW so they are giving an incentive?

Further thoughts:

Will the proc rate remain at about 15 or 16% when we start getting 2-star and higher recipes?