ill tell you this about the roots,the rule of thumb is 1 gallon pot for each foot of height,i knew going in these would be 2 foot tall plants,so i had them in 2 gallon pots,by the beginning of flowering the roots were coming out the holes in the bottom of the pots.I knew if i went all 10 weeks of flowering like this that i would be stunting the growth big time.so i cut the plastic bottom off the pots and filled up 5 more 2 gallon pots half way with soil(I had 5 more 2 gallon pots left over)and put the plants on top of the new half filled pots.They took right to it no problems.These girls need room for root growth.
As far as the smell,I have a carbon filter in the tent,and an air purifier in the room with the tent,and I do not smell anything.When i go into the tent i barly smell anything,if i touch the girls and move them around a bit the odor kicks up a bit but nothing major.The odor is a huge concern for me and i have taken great lengths to keep it non existent.I also have insence sticks in 2 places burning maybe 5 sticks each,and another air purifier near the front door,and if the odor gets past all this,i have a 16,000 ppm ozone machine ready