I have a Fuji system with two spray guns. One is the gravity feed. The other is from the pot below. The spray pattern adjustment is on the nozzle for both. However, the newer gun (the gravity feed) has the spring attached to the angle adjuster whereas the older gun is in several pieces. The biggest difference I've found is that the newer system is a little easier to clean and put back together because the parts stay put when in place. Both guns are great and have served me well.