Each strain has different pheno's to it unless they are a true breaking strain or a landrace which seem to be pretty stable. So you have have a couple different phenols being expressed which would explain why each one looks a little different.
Like already stated, for two ounces, you will need some more light. HID would be ideal but more CFLs would work too.
As as for trimming off leaves, if your still in veg, it won't harm a thing. They will keep growing and replace what was removed.
as for positioning bulbs. Put them everywhere you can. The more the better, esp when using cfls. Since CFLs don't offer much penetration of light, it doesn't hurt to have the surrounding the plant, on top and everywhere in between! Kush is Indica so the good news is they can handle the less intense light better than a sativa would. But if you want to reach your goal of two ounces, then you will want to increase the amount of light you are giving them. A 250 watt HID would be better, and should help you get at least 2 ounces off of those girls. Good luck and happy growing friend
Although i I would shot for a 400w at least and pull 4 plus ounces off them
it would be worth the investment. I can already tell you that once your harvest and get a taste for some nice fresh home grown, you will never look back and wind up growing some more so getting some decent equipment is a worth while investment that can yield you some amazing free, well grown smoke for the life of the equipment.