Why cut leaves off??
What for exactly??
More leaves = more energy being made = more growth = more potential.
Less leaves = less energy being made = less growth = less potential.
Yes, continue with LST, you can keep up with training until about the second week of flowering.........LST is your friend.
Start with bloom fertilizers once there are small clumps of white pistils/hairs forming ("budlets"), do not switch to bloom too early, cannabis still needs adequate nitrogen in early flower.
At the moment however, your plant is over fed with nitrogen ........cut back on the amount your are feeding.
Leaves should be a healthy darkish green, not extremely green like these.
Observe and react, don't just blindly follow grow charts..........not all plants are the same.
Personaly, I NEVER cut leaves off, unless they have gone yellow.