Leaf curl and tip burn are signs of overfeeding, but yellow leaves show that the problem is not nitrogen. too much P or K is likely. all nutes are used seperately by plants so you can burn a plant with P for example, but the plant can still be deficient in N or K... or micro nutes.
You are not using too much Nitrogen. try backing off on your bloom feed strength. if the problem clears up, your good to go. If you cut back bloom nutes and the tip burn and leaf curl go away, but the leaves are getting more yellow ( they will) just add some nitrogen until the leaves begin to regreen. only small amounts of N though. too much N will hinder bud and flowering hormone production.