" If the manufacturer doesn’t think they are needed, why do you?"
The manufacturer is building a unit to a certain price point, they are not interested in experimenting in after market tweeks. That said, there are many tweeks that do change component performance. It is up to the end user to experiment and decide if it is something they want to use or not.
The manufacturer is building a unit to a certain price point, they are not interested in experimenting in after market tweeks. That said, there are many tweeks that do change component performance. It is up to the end user to experiment and decide if it is something they want to use or not.

