I've never seen/heard a recording, I wonder if it's something specific to your rink - maybe ask one of those skaters when you see them?
I don't personally think that something is really required to pace those correctly as long as you can get the first 3 crossovers at the correct speed/power, the rest kind of naturally falls into place. When I see a skater struggling with the "timing" they are almost always rushing the first few crossovers and not holding each stroke long enough.