i like the 90-degree trainer things. I use them even though i use my first scrog level for training too. Just makes it flatter and saves a 1/2" or more of vertical height pushing up against scrog.
Are you using one on a leaf? I guess if it helps but not typical use :P
I think with these lights it's making them look darker than reality... you can get familiar with the differences, but always good to look at them under some normal lighting conditions. If too dark, dial back nutes. They are perky and no visible damage, so they may be fine, too.
My grow lights make them look paler, but i've learned that offset of darkness and know when they are too lush without turning down the lights. Just need time to gain familiarity.