I bought dupont bc/cc today even after a buddy of mine tried to convince me that nason is a much better deal.After looking at that not so shiny acrlic enamel on my 65 mustang for nearly 3 years I wanted to do it right this time.That brings me to my paint gun a divilbiss finishline with a 1.6 tip{older model not finishline II}.Is this gun any good or do I need to invest in a new one?It is like new but it is a cheap gun do the more expensive guns realy work that much better?