I’m not sure giving more hours of light means 20% more nutes. I’d have lengthened the lighting period and watched and waited a few days. If you’re seeing problems then i would immediately take off that 20%
Also the Booster stuff is mostly just potassium “Special K” so I’m using a cheap one from now on! But you do want to ease it in. We go in 3-4 day feeds from 0.5 - 2ml p/l of that over a few weeks. Gradually introducing it. Mixing my first flower mix for the new grow this evening. They’re on Day #2 after flipping. I won’t be adding any bloom booster. They’ve been up potted for just two days.
I’ll switch to Flower A/B and a full suite sweet mix. But I’ll be adding the Root booster for the next few days still. So in three days I might flush. Hmm there’s a thought for me to ponder. Or I might make something the same but 0.5ml Bloom Boost instead of 1.5g Root Boost.
Try and keep it gradual and unless “Raising the gas and dropping the lights” as I’ve been known to do at the slightest hint of a problem (Don’t do that, well unless you know what you’re doing or run extremely lucky which is how I got away with it!)
Also - this is an edit
@Weffalo ran Autos his first grow and sure he had hassles with judging veg to flower switch nutes. He might have some gen.
Change one thing and wait a day or so. See what happens.
Nick