Complete Fox Farms Nutrient Line. How does this SCHEDULE look?

I have all the nutrients on this feeding schedule and follow it to the T http://foxfarmfertilizer.com/FoxFarm-Soil-Schedule.pdf. How does it look? I am continuing the week 4 recipe until i see preflower. Should i do that or should i go to week 5 and switch to 12/12?

wait until they pre-flower and nix the chance of herme's..keep the nute wk4 I use the low side of the range, switch anytime after they show their sex...or 1/2 the finished hight limit. good luck my friend wishing you the best! jack