You also only want to use the pouches & webbing you really need. Don’t overdo this stuff, because it will only make you less effective.
The second tip is to plan your setup and mind things like the size of your pouches, their weight and how their position might limit your movements. Think about running, crouching and even going prone.
Furthermore, things like how you want to access your pouches and whether you will need to access them a lot or not is something to think about as well.
You might even want to fill the pouches, so you get a better idea of what works for you. Once you’ve figured that out, you’re ready for the full assembly.
To help you figure this out, you either want to construct your setup by laying it out with the pouches onto it or making a “quick assembly” by attaching the pouches in a very simple way by just making use of one single piece of webbing.