Is "Dial-in" even a real name in chyna?

Question considering the weekly Hollow Zero raids: once I'm done with cleaning with the 15 handicaps (it's been a while already), I just do the bare minimum to get the 8000pts to get the weekly rewards.
Does adding more handicaps up to 15 leads to getting more/different/new cards that will help me complete Ray's collectopedia, or it's the exact same as if I run at lower difficulties?