Heya Tom, long time no see..
The outdoor GH was a total flop. The neps absolutely hated it! All of them came to a complete standstill for the 2 months they were out there. I hardened them off before hand to the outdoor conditions, but didn't take in to account the shorter light hours. They were still under 14hrs. of light indoors.
So I moved all the neps back into the den GH, and within' the first few days they all started growing again. Good thing I gave up on the outdoor GH, because just this week a tornado came through and swept it away! No joke!!