Looks like there is room for two more participants. Mark sent me a PM the other day, where he told me that he was a bit behind on some matters due to an illness, so waiting for him to give you a "go" would likely waste valuable tying time. So GET TYING!
What's the worse that can happen? The slots are already full, and we just don't know it, so you wind-up with an extra dozen flies for your own box, or for the NEXT swap!