Hello all! Excited about this community but I need help with some seedlings issues

[HomegrownOhighO]

So I've decided to wait until Friday to transplant. I skipped watering for 2 days and let the cups essentially dry out. They were almost weightless. I watered very slowly until I had about 10% runoff. The healthier of the two is doing fine and progressing by the day. The one with the burnt tips is doing better and progressing just not at the rate of the healthier one. Although it's not nearly the size of the healthier one it is developing at a faster rate than the healthy one. I do agree though that the soil is shit and I fucked up the watering but I still want to hold on hope for these two.

 

[HomegrownOhighO]

Current pics

 

[HomegrownOhighO]

Woke up today and they both seem to be turning a light green, which I think is a good thing. I got my fabric pots together. I did a thin layer of rocks, 1/3 of promix and 1 lb of Cali super soil autoflower concentrate, a splash of vermiculite and mixed, then I topped that with a 50/50 promix and vermiculite. My question is when should I water the soil for the first rinse, so to speak, and do I want run off?

 

[HomegrownOhighO]

Current