Yes, the crinkley edges, but also the fact that many of the leaves have only three fronds instead of five. I wasn't foliar feeding, but rinsing some diatomaceous earth off of the plants. Capn, I've been thinking it might be Nitro toxicity, but I've never actually seen it first hand, so I resisted the urge to flush the hell out of them. The strains are mostly ones I created myself by crossing a 24k male with all the strains I had at the time.