It was fast! I started the disassembly on Sunday and Roush provides an overnight FedEx box in the pallet of parts. I dropped off the PCM to FedEx on Monday, had it back on Wednesday. If you're thinking about it, give Roush a call about the pallet of parts shipping time. Mine was about 4 days.
I wanted the pallet of parts to arrive Monday, that way I could disassemble everything over the weekend, and its about a third of the job. Monday arrived with the parts just in time for the mods section and the the build section, which by far is the coolest!