What Is Latest Thinking On Multi Reps With Heavy But Shrinking Lbs?

[David Sklansky]

In other words you have two spotters for your squats or bench presses, your bar has lots of small weights on the end, your first rep (after proper warmup beforehand) is near your maximum, but you do 10-20 reps because your spotters continually remove plates.

Obviously this uses up less calories, at least immediately, than you would doing a bunch of sets of several reps where only the last one or two reps were of equal intensity as every rep is in the first scenario. But aside from that obvious difference, is it known whether the decreasing weight method is better or worse than the standard method?