Forget about that sail crap, trim your engine down. That's a nasty rooster tail.
I figured it was a big puff and they were slamming the tiller. Doesn't look like too much wind out there, which may explain some of the wrinkles.
Nice looking sail. I will say that every set I get from EP is slightly different, which probably means they're getting feedback from the rock stars and modifying the designs. For instance, my oldest sail (circa 2001) has a few extra inches on the top, but the next oldest one (circa 2003) has a more vertical leech/roach (don't know which is the correct terminology there). And don't get me started on the spinnakers!

I figure this is good, as I like the oldest (baggy) sail for the light air stuff because the luff curve looks deeper, and the newer (flater) one seems to have a bit more top end.
Can't wait to see what my next set looks like!