Mixing is effective - All the consumer line and MX products are mixed.
However, for day to day use, layering is a better option because its repeatable but variable every time you use the mix, or adjust components as you go.
This spray here - spray there approach is verging into overthinking IMO. Which is the death of phero use anyway. They all layer fine, except oils.
Read this:
And at 26, you shouldn;t be wearing pheros under clothing, except for very specific purposes. That’s a young guy’s thing, to slow diffusion greatly.