Another great post bro! Congrats on the new sprouts. They look great.
Always know your grower... or BE your grower. If you can't, minimize risks best you can.
BTW I don't think you're dealing with any light burn. It's just how some seeds escape their shells... luck of the draw. Some just fail to thrive for no perceptible reason sometimes. Just like animal babies, I guess. But yours look fine, and hey, there's always more seeds to crack!
And congrats on your cannabis post payouts! You're achieving what I've never managed to do, in 4 years of nonstop cannabis content! I live vicariously through your success : D