Critical in new custom soil recipe

I admit it, I've definitely had better grows. But one after anonther. Unfortunately, the babies still have to stand in the middle of the room, where I have no way of controlling the temperature and humidity. This results in the plants being exposed to a VPD value of over 1.5, which causes a lot of stress at this stage. To counteract the stress, I repotted them last week, also because I had to start training. The training (supercropping and defoliation) is going very well so far, the plants all have at least 4, more like 6 topps. The new grow is looking healthy now. Due to the stress, however, the plants have a small infection with thrips. But that's not a big problem to that extent. I will be doing a foliar spray with neem oil over the next few days and if that doesn't improve it will work with predatory mites. Next week the plants can finally move into their tent. There they are given a week to get used to the situation, and then flowering begins.