Yeah, the krausen was going to be my trigger as well, but may just go ahead and do it tomorrow to be sure I can get what I'm going for. It's beginning to dissipate from original high point, so I'm going to strike while the iron is still hot.
This was at 8:23 a.m., about 13 hours after I pitched.....
This was at 9:16 a.m. (55 min later)
It's now spiraling like crazy in the carboy and pushing foam through the blowoff. Very aggressive fermentation!