Shao said:
So how are power levels calculated without it? I'd like more detail if possible.
PL Catchup is only related to death.
The server takes everyone's PL and averages them. So when you die, if you are below the server average, your PL will go up a bit, but if you are above the server average, your PL will decrease. This is to balance out the game, when a new person joins a server full of people who have already been playing for 20-30 minutes.