Yeah, good watering schedule for now. It will change as plants get larger.
I started topping at the 5th node, probably topped about 4 times and should have done more.
Well maybe throw them into 2 or 3 gallon pots now and let them veg for a few weeks in there. That should alleviate the roots trying to grow out.
Sexing, well that takes awhile before you will know. My plants reached sexual maturity almost 8 weeks after sprouting, once the nodes start inner-spacing opposite each other you will see either the pistils or the balls form. Both and you got a baby RuPaul. You could also in a few weeks pull some clone plants off and throw them directly into 12/12 lighting and determine much faster if you don't want to wait.
Ok I have a plant not sure of the strain it was out of a very good bag of weed I have it under 24 hour light with six 1600 lumen 6500k cfl bulbs the temp is a steady 72 to 76 temp at all times the plant seems to be growing slanted but the top is always up facing the lights the leaves have begun to droop and feel crisp with no abnormalities to the leaves all look healthy it is getting bushy and the first set of leaves fell off and also the ones above those I have not added any nutes at this time please help so I can get it back on track here are some pics 
