A friend of mine just purchased a new Magnum today (his third), and already he is having to make some modifications to it. He said that when the sprayers are set from wide pattern to narrow pattern, the calibrations are a million mile off. It sprays WAY heavier on narrow than it does on wide. He also said that after ten years, you would think this company would hire someone who knows about spraying to help them design these things, because they must not have the first clue. The first ones of course, had all their troubles with the one holed hoppers that would never spread evenly. Then, they put a different hopper on, only the same thing. Now, they finally got smart enough to put a 3 hole hopper on (they could've figured this one out about 10 years ago), and they STILL don't get the spraying down. Another thing they could've improved. was the spraed/spray rate in accordance to the rpms. Because of this, when you come up onto the end of a row, or anywhwere you have to slow down, yuor spread pattern narrows, too, although the drop rate stays the same. Well, with the liquid, the opposite happens - you just get less spray. Anyway, back to the spray problem of this machine. If you run water through it, spray it on cement at wide, and say it takes maybe 30 seconds to dry. Then, spray a pass on narrow. It will take WAY longer to dry,...like up to a five minutes. This isn't even CLOSE to the same spray rate as the wide pattern. Also, on narrow, they have it set to where it only sprays between the wheels, rather than offset to the side a bit. This makes no sense. It is when you only want to spray curbedges and along flowerbeds that you would be mainly using the narrow width setting. He said he'll be changing that, too.