Looking at the specs of the E42 long arm sure are impressive compared to my Takeuchi TB153FR. More digging force, hp, bigger fuel tank, and weights about 3,000lbs less. I'm guessing a fair amount of the lower weight is due to the side to side boom on the 153, it's not a light setup. It gives up 5 gpm aux flow, about a foot of reach and digging depth but that's pretty small. I do wonder though even if you factor in the boom weight difference, that's still like 2,000lbs less weight, it would have to be more tippy I wonder if it performs the way the specs say and would be capable of out digging the 153. I never looked at the counterweight swing, but being 6" narrow track stance i'm guessing the counter weight swing is same as the 153. If I was going to replace my mini ex i'd definitely be going down in size to something like that. Loosing 3,000lbs make it easy to haul with CTL behind a pickup which I can't do now. But it only has 4500 hours on it and I plan to keep it for a long long time yet.