I was talking to a nursury owner the other day, and he said if I mixed in one ounce per gallon along w/ my gylphosate that I would see instant results... like same day results. Any truth to that? I bought some for $15 that says crabgrass killer, I hope it is the same stuff the man was talking about. I paid $50 per 2.5 gallon container of Razor 41% glyphosate. I thought that was pretty reasonable compared to 1 gallon of Quickpro at $117.