I just got my Bro-Tek ripper with the additional trencher attachment which will fit my BH77. I gotta say, maybe I was expecting too much but I'm not really that impressed. It's made from lighter weight material than I would have used if I had fabbed it myself (then again, I'm known for over building things). I suppose it will do what it is designed to do though. I have a question for someone that has one, how deep of a trench are you able to dig with yours? Also, do you get lots of dirt falling back into the trench behind the trencher?