This is pretty much the last link for me to get moving on this. The 3x3 and 4x4 tents are both 6'-6" tall. Here is my strategy: Genetics will probably be AK-47. I've heard that has more Indica plant traits when growing and is easy. They will be under 600W HPS with plenty of ventilation, so heat should not be an issue. I will veg them to 2 - 2.5 ft and then flower, so final plants I would hope would be about 4 - 5 ft upon completion. So, for both a 3x3 and a 4x4 grow tent, how many plants do you think I could get in there without overcrowding and to produce the highest yield?? Any advice would be mucho appreciado... peace!