We have a DitchWitch 3500 trencher, I use it a LOT (power/communications trenching and irrigation), like this one: It has a 4 way blade that I use to backfill a lot, at first I couldn't do a very good job without digging one side in but once I got used to it I can make pretty fast passes and get most of the spoil without damaging the turf below. A 6 way blade would definitly by ideal when your working on a slope, but for the most part it works well. The only thing I have never been able to figure out how to do well with it is backblade, it tends to float on the blade and your front tires get off the ground, so you can't steer. This also happens when grading forward if you try to push too much spoil. Is there something I should be doing differently to keep better control, or is just the fault of a machine with no real suspension and a blade? Also, the wheelbase is so short its real easy to grade swells into something, and really hard to grade them back out. Any tricks you pro's know do prevent that? Its a great machine, I just get frusterated with it on occasion and wish I had a skidsteer.