We "HAD" one of the dual action sicklebar mowers. When they run they are very good and fast, very little to no tangles. Having said that they are a little more noisy and the parts replacement is a little harder. Also if your fields are not perfect (rocks, groundhog holes, sticks) expect to be replacing parts often. They seem to sheer the guards and knive pretty frequently if you run into any of the previously mentioned items. I would buy another if in the market for one but I would be selective on where I used it.