I'm thinking of adding a sprayer to my arsenal and have looked at both tractor driven and atv driven units. Since I don't have huge areas that may need spraying with roundup, etc, the tractor units might be a little much. I'm thinking of 1/2 to 1 acre projects. With that being said, both the TSC and others, such as Southern States, sale ATV sprayers. I'm thinking about a boomless sprayer unit, 25 gallon, that is capable of administering spray from the rear or a wand. If you have tried such a unit, how do you like it?