The bad news is that Parcs' recruiting is a bit slow. The good news is they put their money in contract support. Their rep amongst contract pilots is better than all other agencies combined.
I think they might be slow in recruiting to filter out the riff raft. It pays to be a little patient, and go with Parc. Trust me on this.
One pilot, on my first contract, told me many pilots won't work a contract unless it is under Parc. After two contracts, and seeing what went on with Parc vs the others, I also will not work a contract unless Parc represents me.
Wasinc would be my second choice in China. The rest are fly-by-night operations, and I have never met a pilot under contract with any of them. Except Rishworth.
I was told Rishworth was the worst, right after starting a contract under Rishworth. It took very little time to figure out why. I would never work a contract for them again, no matter what the money.