I run a dingo 425. I bought it used originally to use as a mini skid because alot of older homes in the older parts of Boston have to much limited axcess to get my full size skid in. After having the mini skid for a couple of months i sold my trencher and bought a trencher attachment and pipe puller attachment for the dingo. Both work great. My only complaint is that it is to slow when using it as a skid with a bucket or plow on it.