The issue with my powerpak is that the nozzle is stuck in place. The powerpak doesn't have a plate screw on the front, the QFD nozzle is where this screw would be on other soakers. Also, even though I've taken all the screws off, one of the sides of the shell is still stuck on. It wont come off because the nozzle selector gets in the way.
In a completely mystical turn of events, the nozzle selector turns again. I'm not sure what did it; either me pulling the trigger a few times while it was open or trying to take the shell off by flapping it like a butterfly wing. This "repair" is just as mystifying to me as the issue itself lol. I assume that the spring loaded part that locks the selector into place was misaligned and put back into place by all of my monkeying around.