I am not a body guy but did take a course at the local trade school and got to try real expensive guns and low end guns. For me I couldn't tell the difference. When it got time for me to replace my real cheap suction gun I purchased a DeVilbis Finish Line kit from Eastwoods. It came with a jam gun and a full size gun with several different tips sizes. I am very happy with the results I have been able to get with it.