Interested in trying this product - anyone try it? Know if it is worth the cost? I would like to use it - I have a tough time with crabgrass on occasions. From reading the info - 1 pass with one liquid product. No extra mixing, etc?? Currently I run broadleaf, fert with deminsion in it. I also pre-mix some drive. Maybe more costly but I have reduced the call backs by 90% by running with this rate in the spring.