I've recently started my own business in central Illinois and was wanting to get everyones input on the efficacy of different herbicides in my region. i have worked with speedzone, surge, momentum, tenacity and t zone, to name a few, in the past. my experience with them has not been to my liking. i want to be sure when i spray a lawn, those weeds are going to die. as a new business, i cant afford to be called back to a lawn to spray again, and i want my customers to see that i do indeed, do a better job than my competition. Thank you for your input.