Any training needed

Just remember, every healthy green leaf that is removed will decrease your plants capacity to produce the energy she needs to grow her biggest and best. Each leaf is like a "solar panel" - Less "solar panels" = less energy made = less/slower/smaller growth. It's plant biology 101! Autos perform best with nothing being cut off. A little well considered LST will increase yield and not take up too much extra room if planned thoughtfully. Even just getting some branches to go horizontal for a bit before allowing the branch to resume vertical growth will not increase the plants' "footprint" by more than 10-15%, but would produce many more good sized flowers down low on the branches. Hope this helps,.... Organoman.