It's now time to put the plants on a bit more surface, a bit apart. When the leafs start to touch they are going to compete for the light, resulting in more stretching.
Do you ever spray your girls in veg?
now lower the lights... and make a reflective shield at the long open end pronto!
Yeah I'm from holland, I hate to spill light
Seriously: make a curtain of white foil on the long side, that will dramatically influence the light on your plants at that open side. You have the lamps positioned overlapping (which is good) but in this configuration they are not very wide and everything you get at the sides you should reflect back.
How could 3000W come anywhere close to possibly requiring a city inspection for power consumption?
yup, down you go. @ 1000W you can easily go down to 25" - kick some ass
I recommend to do every light change gradually.