Griff,
I'm pretty sure the answer to your question is, ZERO. If I recall correctly, the last SCISA team to beat Pinewood was Ben Lippen in the playoffs of 2003, I think. Hilton Head Christian came close with a tie in a lightning shortened match, 2005 I think.
I can't really talk to the skill level of CN, but based on their results, it's pretty clear they can play. However, that said, I don't think they have near the "depth" of skill level to match up with Pinewood. Unlike the last couple of years, the SCISA upstate appears to have a clear front runner in CN.