Sounds like very good advice....Let me reinforce some of what engatword said----Don't roll the engine lift around until the engine is lowered to near the floor. It may not be immediately obvious, but when the engine is high that it makes a very heavy pendulum with a fairly long period of swing. If you move it with all that mass up high, it is possible to have it start to swing, almost imperceptibly..... If your next move happens to coincide with the swinging of the engine, the amount of swing is increased. It may start swinging just enough to pull the engine crane over and dump the whole load off to one side. If you're lucky, it will not hit anyone, and it will swing over and miss the fender, but the crash onto the floor is not pretty.