When running a chest rig I tend to keep things on my belt to a minimum. At the most just my pistol, pistol mags, a gas bottle and a utility pouch for if things need to be collected.
Its easy to fall into the trap of thinking every bit of molle must have a pouch on it, which leads to finding things to fill those pouches. The next thing you know you're dragging around a load of extra kit you don't actually need it use.