Part of first grow Tangerine Dream

so started low stress training td3 i can not figure out exactly what is wrong, either light or wind burn happening, ive tried to raise my fan as high as i can get it, have 2 new clip ons coming tomorrow, did top dressing this week, did not lower light yet is still 3 ft from canopy at 70% but 2 other plant with leaves closest to where circulation is occuring has curled leaves as well am pretty sure is wind burn. will try to narrow it down this week, also top dressing with 444 down to earth slow release