The humidity flexuates between 25% and 35%. I was worried about overwatering. Weight and touch seem dry around every 3 days. They have been getting between 1/3 and 1/2 gal in their 2 gal. pots every 3 to 5 days. This past week, since they've kicked into flowering, they have been getting dry every 3 days. I am using foxfarm nutes, which I have backed off; plain H2O only this past week. Previously they got 2tbsp Big Bloom and 2 tsp Grow Big. I was worried about nute burn, but I have followed the foxfarm soil schedule exactly, except I delayed the start of the cycle until 3 weeks, instead of the reccomended 2 week start.
As for molassas, I have tried it, but got bugs after. I don't know if the sugar brought them in, don't know how they got in, don't even know if the molassas was related, but I got a BAD case of spider mites after two waterings with 1 tbsp molassas per gal. Honestly, the spider mites were such an annoyance, I've never tried molassas again in fear the two were related somehow.