This is super important.
We hear with our eyes quite a bit by way of how our brain catalogues various information. For instance, if you hear often that certain mojo parts help your tone, even if science and testing says they don't, it WILL likely make a difference.
Same with beer. We drink beer with our eyes and nose as much as our mouth. The appearance of a beer in both how it looks and it's foam are big factors in how we enjoy the beer. In the same way as mojo parts, if you brew your own beer according to a specific practice/methodology, you are likely to think that method made the beer better, even if it didn't.
In the end it doesn't matter. If it makes you play better/tastes better to YOU, then it is better. Doesn't mean it technically is, but often times that is irrelevant outside of just trying to win arguments on the internet.