I think the take away is for cams with the same @.050" duration but with different lifts means the one with more lift will have steeper ramps, may require more spring pressure, and may be a little harder on the valve train but likely makes more power assuming the heads can support the higher lift.
The one with more lift likely has less .006" duration due to the steeper ramps, which would shut the intake valve sooner and build more cylinder pressure in theory too, right? Either way, I think the higher lift cams were developed to take advantage of the larger .904 Mopar lifters and generally result in more power. I'm no expert though and I've never even stayed at a Holiday Express.