Strawberry Cough - Newbie DWC

Messy looking leaves this week are due to LST. New tie downs on the side of the netpots are working out, she's growing fast so I've been adjusting daily, ended the week spreading out over the edges of the bucket. Turns out my topping was more of a FIM, 3 branch node off the meristem - neat! 2 are growing thick fast, the third started with some single leaf nodes, and a bit frazzled, but the new nodes are developing nicely. Did a res change the first day of the week, pH of the original nutrient solution was still dead nuts stable after 2 weeks. Backed off the nitrogen and epsom a touch and she responded well pretty quick. New branches are showing better, stronger growth, starting to get into her stride. Minor pruning before flipping lights to 12/12 Nutrient mix (Per Gallon) (ml/gal on growdiaries nutrients = g/gal): 3.6g Jack's 5-12-26 2.2g Calcium Nitrate 1g Epsom salt 3ml Silica gold 3ml Fulvex 1/8 tsp per bucket RAW phosphorus 1/2 tsp per bucket of Great White Phosphoric acid pH down Currently mix NPK ~ 7-4.5-9 @ EC2.2, got a little higher concentration than I was shooting for, going to top her off with just pH'ed tap water for a bit to dilute. Flipped to flower on day 32 from seed, half way through the week, and cranked light to 80% @ 14", time to stop babying and see what she can do with real light. d33 - topped off res, moved LST tiedowns, noticed a couple intermediate growth fan leaf tips going a bit yellow, high on the plant so maybe light burn already? staying at 80% @ 14" for now Roots look less than ideal, I reeeeeally hope those high res temps didn't kick us in the rootballs. d34 - adjusted tie downs