Since I've started using the 335 CP rotation, I have used 0 HQ materials, I don't worry about them any more since I've been able to get 100% on 1-star with it very easily. And since I was able to get 100% on the Pineapple Juice synth I attempted 1st try with minimal effort, I almost certain I can do 2-star with the same rotation, as I am no where near the cap on Control since I have 0 melds in AF/offhands, I also still have the option to upgrade Standard Touch to Advanced Touch(if needed) using Stone Soup (or Frutementy if I finish my CP melds), or I could just use control food and keep using Standard Touch.

But if I was able to get it to 100% that time, I would think just full melding the AF with materia would be more than enough to solidify those results.