I agree that OGs are picky plants. I used to have a Tahoe OG which was pain in the ass to grow but the quality is what made me keep it until a friend threw it out (ahhh). I wouldn't cut back on the Nitrogen as OGs are Nitrogen and Calmag hogs. Just reduce the ppm amount a little. I have had several plants with eagle clawing the first 2 weeks of flower. There is a possibility that the light change could be the factor. I start my plants under T5s then in flower HPS maybe the light penetration is overwhelming?
You're only 33 days into flower man....you havent even reached the swelling part yet and those bitches are huge! So stoked to see how this turns out man! My next round is gonna look almost identical to this as soon as my DK finishes flower....damn the wait :/ They look awesome man...you're gonna have some hella-decent bud porn in a couple weeks(softcore is good, but we all dig the hardcore lulz) Keep em comin and i'll for sure check back 
