I have a set of those I picked up at HF years ago. Worth every penny! A real back saver because you can concentrate on lifting properly instead of your grip.
Yea, Mike, weight seems the least of issues on most this kinda lifting. Its usually the bending or the size/awkwardness of the object.
Funny, when I was a younger dude, two of us would lift SBC engines and carry em off trucks and into the shop with a 4x4 across our shoulders and a chain! Thats 550#!
...of course stuff like that might help explain why my back and knees are junk now!