I feel like this was a long overdue upgrade. I’ve been making printed rests to match my cases forever, but the hard print wasn’t the most comfortable. (And I can’t stand the look of those jellybean Amazon rests.)
So, I started fitting them with custom-cut foam pads. Big improvement!
Good question. Like everything with Dactyls, it’s a matter of personal preference. The driving factor in this case was to allow the foam to flex around the curved shape of the rest. It does add some grip though, and I like it.