There is five hundred pounds of steel in a one hundred pound space. The older Case weren't to bad, then I bought a Case 445. It tried to kill me after that and few other major problems I traded for another Case 445 series III. The first 445 tried to self destruct,a nd take me with it, all in the first two hours. It was a cold morning so I let the grid heater work hit the starter while reaching into the cab. The bucket went up dumping me part way into the cab and breaking the door, and for some reason stopped, going up. I loaded it on my trailer and took it to the dealer. Of course they told me I should always be seated inside the cab when starting the machine. I didn't know it but the district guy was there from Case. He told the dealer I had to be lying as that can't happen. I was pretty upset about the door breaking and left before he told the dealer. I have know the guys at the dealership for for fourty or fifty years, and they assured him I wasn't lying. When they bypassed the door switch and started the machine up went the loader arms, and also his eyes. I should of demanded a new one, instead after four new control valves they got it to work. A few months latter it did it again. They kept changing control valves one would go up the next one would go down. After that and a talk with the Case district fellow it was modified again. I never trusted it and sold it, maybe I had all the problems taken care of it, but will never know. The new one is much better and much easier to atleast change the oil filter. I sure would of never set fifty foot trusses like I have with the new one.