FA RY4 has a cleaner taste IMO, I sometimes get a chemical, scotch tape-like taste from TFA's RY4D.
5% CDS can be a bit much sometimes, it's more balanced at 4%.
2% Cap Vanilla Custard (v1) is nice to fill it out and smooth some harsh edges.
1% of FA Joy adds some yeast and sugar that is perfect in this recipe.
Pretty much shake & vape, but I like to give everything at least 3 days. Improves slightly with a long steep, nothing major. Sweetener not needed and vapes pretty clean, but hey, add some if you like.