My best results are planting directly in the final pot. I planted in ocean forest + perlite, watered, covered with a clear to-go plate dome after misting the underside and had seedlings within 3 days. 100% success rate so far.
I've tried doing the tray and dome + soil free media mix in small pots (I added a little soil) and my results have been embarrassing.
If you have the room, plant them in your big girl pots.
Also, I find that balls to the wall lighting is not beneficial for photo period seedlings. Even my auto flowers get a bit of darkness. I think a lot of my problems came from trying to make my plants too comfortable.
I'd say 18-20 hours of light and let them stretch a bit. Don't push the lights close, even if they're cool. My autoflower seedlings started with the MH 3 feet away and the tray and dome seedlings were maybe a foot or less.