I used to sell the Cobalts,(1.4 tip, over reduced for. single stage enamels...) Wonderful gun, for it's time... The " purple gun" , is wonderful..., I spend too much time: cleaning the gun, over reducing paint to flow freely, how I like it to flow, and the bad quality... For what I need to do: (limited air flow, limited air line, limited time wise) an old school siphon Binks 7 style gun, makes more sense....