about 10% of my nodes are turning orangey brown li...

@Gazza42 Hey buddy! You still have a few weeks to go, your plant is driving all its energy into bud fattening & resin production, this happens during the last weeks so don't rush anything! Wait until most of the pistils have turned curly&amber, and half of the trichomes are cloudy. When half clear half milky, start the flush for 7~14 days depending on the trichomes evolution (I guess you want them 100% milky for THC potency peak, with only a few amber trichs). I would give them at least 1 last meal, maybe 2, then take a daily closeup look at the trichomes with your magnifier/microscope. You'll be the only one able to judge the maturity of the trichomes, so take your time and look at different buds on different parts of the plant (it's a common thing to have heterogeneous trichomes but try to find the best compromise for all of your buds or harvest in multiple times). As always within the growing game, patience is the key 😉 Hope this will help, keep us up-to-date and happy growing 👊