Your grow looks good. I noticed that you stated that you may want to add a supplement to improve stem strength next grow, so I thought I would suggest adding a Silica product. I use ArmorSi from General Hydroponics, and I can say that it definitely helps make the stems much stronger, but they will also be a little more flexible during veg, which is good when trying to train a plant sometimes. Silica also helps strengthen the cell walls of the plant, and have heard people say that it kind of makes the plant more chewy and tough, which bugs don't really like. Anyway, good luck with the grow, I wish a good harvest.
like 1