It's only on the oldest leaves. Lower and new growth is lush. Ph is between 6.2 - 6.5 PPM has been a little problematic lately. I think the roots of the two males I had to chop down are breaking down and jacking my meter through the roof. I have no signs of nute burn so I've stayed with the feeding sched. It could be foliar nute burn. I mist the underside every day with a weak solution. Maybe I've gotten sloppy and this is foliar nute burn. I'm about 2 weeks from my nute flush so just trying to avoid catastrophy. Buds are filling out nicely. Have a few amber pistols each. This doesn't seem to be a real heavily bud stacked strain, but I've got LOTS of small buds. I'm consider WW for my next grow. Thoughts?