I Used to Think More PCB Layers Always Meant a Better Design

At first, I assumed moving from a two-layer board to a four-layer board automatically made a design "more professional."

Now I see it's really about choosing the right solution for the application.

For simple projects, two layers are often perfectly adequate.

For higher-speed or more complex designs, the extra ground and power planes can make a significant difference.

Good engineering isn't about using the most expensive option—it's about making the right trade-off.

Have you ever redesigned a board with fewer layers and still met all the requirements?