Three weeks have passed since I planted these seeds. Most of the plants are on their third node and doing OK. All of them have suffered from too little light, as 2/3 of my fluoro fixtures were essentially inoperable, so I upgraded to 80 W of LED shoplights in my veg cabinet . They seem to be responding well. Not sure if I'll be able to have any clones ready to flower in October as I had hoped, at least not early October.
Three of the seedlings have issues, and I think I must've screwed up by transplanting some of the seedlings into coco that I reused without flushing, so they almost OD'd on flower nutes. The cotyledon leaves on these three shriveled up, the seedlings were dark green, I saw a little nute burn, etc. When I realized my mistake I flushed them and have been feeding light nutes since. Two of these runts, #2 and #5, were also quite late to germinate and needed some help. If I were selecting for vigor I'd cull them but runts seem to have a reputation for bringing recessive traits to the fore, so let's see what happens with them.