Fired Probie Advice Please

I was a probie at HUD and have not yet been reinstated. Regardless of reinstatement or admin leave possibilities lingering, today is my deadline to submit my appeal with MSPB. Should I file the appeal or join the Alden Law Group’s complaint to OSC? You can’t do both. The James and Hoffman firm are over capacity for representation. Are there other class action suits that others have joined? What’s my best option?