Auto White Widow, first try LST/Topping

Started germination on 5/5. Day 1, Germinated 4 seeds on damp paper towel inside plastic bag. Placed on top of heat mat for 24 hours. (3/4 were sprouting well, 1/4 cracked and barely sprouted) Day 2, Removed from paper towel, placed in cup bottoms with neutral soil and mycorrhiza added. Moistened soil and wrapped with plastic wrap. Sat on top heat mat. Day 3, Removed sprouts from cup bottoms and placed in 5 gallon cloth bags. 2 plants per container, filled with Kellogg's soil/perlite/peat moss/mycorrhiza mixture. Mounded for watering purposes. Going for a SoG technique. Day 4, Good progress, most leaves have turned darker green and beginning to look for the light. Watered drip line to ensure mycorrhiza developed. Day 5, WW2-4 both grew 1 inch, WW1-3 both gained 1/2 inch. Most leaves appear normal, except WW4 which has slightly dropping cotyledons (the one with slight yellowing) Day 6, WW1-4 all gained roughly 1/2-3/4 inch, all roughly the same size now. Yellowing on WW4 is gone, signs of secondary leaves visible. Half a watering today. Day 7, WW1 is the tallest at 2.1 inches. Barely visible secondary leaves. Don't think it's stretching because WW1 had the best access to light. WW2-4 are all the same height at 1.8inches and bigger secondary leaves. Everyone seems happy and healthy for their first week.