I am looking for feedback on companies that have used both PG's and the Z-Spray systems. Please compare and contrast the 2. It seems from all the posts that the PG is used far more fequently, but not that reliable. My main concern is the accessibility with the z-spray, will you have to be collapsing the booms all athe time to avoid phyto to non-target areas? I am going to Ind. soon to demo and research both. Your input would be greatly appreciated.