Looking good.... I use ff Grow big and ff tiger bloom, you have to be careful when using your nutes, i am 30 days from harvest and my plants have never seen more than half strength nutes. i havent burned them at all and have had no deficiencies.
I recomend starting at 1/4 strength nutes and working up to 1/2 strength.....i dont like to force feed my plants, also all the unused nutes will turn toxic in your soil and kill off your plants. i used to give full strength or more but had some pretty bad stuff happen so i backed off with this grow and it has been phenominal. they grew twice as fast and twice as big. the kolas are way bigger as well.
just something to think about.
Also, your using ff Big bloom and tiger bloom? one is organic and the other is 80% organic..... both are bloom nutes. What are you using for veg? I use grow big for veg, then i use both grow big and tiger bloom for bloom phase.
the only issue i see with your plant is its overnuted, see how the leaves are all curling under and pointing down? its not that bad yet but you may want to flush. and cut your nutes back. its hard to burn with organics so your signs will be a little bit different. big bloom is 100% organic.
If you want to rejuvinate your plant, after you flush mix up 1 part fat free milk to 10 parts water, foliar feed your plant with it. your plant will love it, a ton of calcium and other good stuff (anti-fungal properties). your leaves will turn a very healthy green and extremely shiny. almost looks fake. i do this about every 2-3 weeks and it does wonders. I had a fellow grower over to look at mine and he was astounded by the results. works well to control powdery mildew as well. (thats how i found out the good results).