I have a large, VERY large bank that I spray 3-4 times per year with glyphosate for a total kill. I'm trying to keep from carrying a backpack sprayer all up and down the very steep slope. It crossed my mind to buy a SR450 to use on this bank. I have ZERO experience with a sprayer like this unit. Any opinions on whether or not this will work for my application? It looks like it's more of a mister rather than a sprayer.