Bio nova / flush week

Hey everyone,

I am approaching towards the end of the grow (yay) and not quite sure how to water during the flush week.
Bio nova suggests adding to the last week BN-zym, BN-xcel and The Missing Link (energy nutrient similar to bio heaven). Schedule attached below

what do you think? Has anybody got an experience with or answers from bio nova? cause they didn’t reply to my query

thanks a bunch!
Not familiar with the products, so cant really help there. Just proper ph water is all i ever use. Unless i want to add flavoring.