Quick Critical Plus

Day 81, Thur 28th Feb, Day 22 of flowering. I previously grew platinum cookies, when i switched to the flowering stage the HPS lamp was between 30-40 inch from the canopy, this caused significant light burn, i assume this was because of weak genetics (i got the seed from a private breeder). Therefor, this time around i have kept the lamp at between 37-40inch away from the canopy throughout flowering of the quick criticals. Today i have dropped it to 19inch from the canopy, this was advised to me from an experienced grower, i also believe the genetics of this plant will cope, i shall keep a close eye on the buds. I have been slightly concerned with the size of the buds, which prompted me to ask questions. i have also added bio-heaven (strongly advised by an experienced grower), magne-cal plus (to act as a pH buffer), and liquid silicon (to raise the pH of the nutrient solution). I added this solution yesterday, this morning the buds seem to have swollen, so first impressions of the bio-heaven are positive.