Looks, nice man. Try dropping your lights on temps to around 77-80 after week 4 of flower to form up more dense nugs. Also, you can widen the gap between lights on temp & lights off temp. Early veg & early flower pre-week 4 to 6 depending on strain large variances in temps between day and night cycles will cause huge stretch. Once the plants have finished growing this energy will go towards the budding process and densing them up and getting some nice cake to come in. Temps over 82 I find will form nice big buds but they will be airy and prone to fox tail. They seem to not develop as much resin production either as temps from 77-80 with lights on.
Keep up the good work!
@LegacyMarketFarm,Thank you for your helpful sharing, but unfortunately I do not have an air conditioner to control the humidity and temperature. everything can only depend on the weather, I'm in Vietnam so this winter weather is quite humid. and my english is quite limited, i can only use google translate to understand what you are saying