Thanks mate!
I was thinking of letting them grow a bit more and then start removing smaller branches. I haven't done much pruning in the past so it would be a first for me. It's something I've been considering for a while now, to promote the larger branches and remove some smaller to end up with fewer larger colas. I have a feeling it could pay off and I read in your thread that you remove underperforming branches and you seem to get good results with that technique so I thought now might be a good time to try it.
When do you normally remove branches? I removed the first node branches from all plants already as they where just hanging around below the screen but for the others I feel they have to grow to a certain size before you can determine how big they will end up and secondly I would like to see how the screen fills in before removing too much as I wouldn't want to end up with holes in the canopy.
You'll definately see the difference once you start! I usually start pruning once the screen is filled how I want it. Any growth that hasn't made the screen by then as well as most of the undergrowth gets pruned over the course of a few feeds. The secret with pruning is not to chop off too much and risk shocking the plant. I usually start with the branches during the first session (although I tend to remove any that I know won't ever reach the screen before this), the lower growth during the second and the higher growth during the third.
I've found with most autos I've grown that less is more. Trying to create loads of bud-sites will only lead to loads of small buds. Instead I've found that focusing on 8 or 9 branches and developing a major cola each is the best way forward. That's why I always top my plants; To re-divert all that energy into the side branching. Topping really does work well with autos - The new shoots never really develop into much but the side branching goes into overdrive!
Hope that all made sense. I am beyond baked on some 2 Fast 2 Vast (or vice versa) and I keep forgetting how to type
Cheers,
Hardon