They look pretty happy - if anything I might be seeing some slightly burnt tips in ur pics in the last post. My guess is you have enough of what you need in the FF with castings already…presuming this is ur first run in that soil. Hopefully you start seeing some more trich production over the next couple of weeks.
How long are the strains ur running supposed to take? 60 days puts you at about 8.5 wks, so IMO top dressing now wouldn’t have much effect over the next couple of weeks, takes some time for it to become available to the plant.