After Nutrient Burn

I am using hydroponics to grow Chocolope CHC-F3 and Northern Lights #5 FAST FCA-F5. A while back I noticed what I diagnosed as nutrient burn while in the vegetative portion of the grow. Therefore, I reduced my nutrient concentration by 25%.

My question is:

Do I have to remain at the reduced nutrient concentration for the duration of the grow, including the remainder of the vegetative portion and the flowering portion?

Unless she shows me she can handle more, I almost never use recommended strength, except with my IPM. 75% is about as high as I go with nutes, I'm DWC as well.

I ran at about 1/2 always on salt based nutrients
No sense in raising it if it works
Manufacturers guidelines include selling more product