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| A few points for ya:
1. Make sure you understand the modes that are available to you with your system.
2. ExactApply does have less pressure drop through the PWM solenoid/housing than others, so regular PWM spray charts might not be giving you the whole picture, especially for your high volume stuff.
3. For your 20GPA fine to medium spray, depending on what speed you plan to go (guessing it isn't like 8-10MPH), the only way you are gunna get a decent medium spray is probably going to be using an A+B mode.
4. If your speeds are pretty consistent through your pre-/post/herb/fung, then you could probably get away with a solid coarse 10GPA nozzle for your pre work, and a solid 10GPA that will suit you for your post work, which would usually be medium spray quality kind of stuff. For the 20GPA stuff, it'd be a good way to use both of them at the same time.
5. For your 'fine' spray, as long as you aren't too coarse, you'll always get a fair bit of fine. I wouldn't trust a nozzle that produces a 'fine' spray category at your pressure. Prepare to lose like half your spray to drift. (Even for your 20GPA herbicide, I'd imagine thats something you wouldn't want so much).
6. For multi-angle tips, keep in mind that any deviation in angle will mean your spray has to go a lot further to hit your target. So if you had a heavier angled tip forward/back, it can cause you grief as your spray will have to travel twice as far, with the same amount of ooomph behind it. (Multi-angle are great for vertical targets with very little target zone, like cereal fungicide aiming for flag leaf and up coverage, but can be lackluster at higher speed applications into canopy crops like pea/pulses/soybeans/lentils/canola/etc.) If you have primarily canopy stuff that won't benefit from multi-angle, I'd put my money towards two nozzles straight down. Again, I don't know what you are growing/spraying, so just bear in mind what you are trying to spray and how you are best to hit it.
7. This one is more of a plug for Wilger stuff, but its moreso to mention using Tip Wizard to figure out what nozzle size and how your duty cycle will be through your spray plan. (Tipwizard.net) Free app, but it does only show Wilger nozzles, so if you were going Teejet or Hypro or whatnot, you can still use the nozzle sizes as equivalent. If you know enough about them, you can even relate similar results between the different series to give you an idea. Tip Wizard does have the pressure drop of the ExactApply system in it so you get a clearer idea of what the pressure/nozzles would actually be.
8. If you give an idea of how fast you are going through the applications, we'd be able to give you a better idea.
For example, if you were going around the 14MPH, you might be looking at an MR110-06 at like 50-60PSI for your pre work, and an SR110-06 (finer spray) for your post work. Using both together for your herbicide work around the 60PSI could be a good place to be for both your 20GPA herbicide and fungicide.
[EDIT]
9. For ExactApply modes, you'd probably be using A or B (with PRE nozzle on A; POST nozzle on B), and then using A+B pulsing for your 20GPA work.
Edited by WilgerIndustries 5/13/2020 17:11
 (ExactApply_Modes (full).jpg)
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 ExactApply_Modes (full).jpg (143KB - 196 downloads)
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ExactApply Nozzle selection
