Did anyone catch this? Watering three times a day is a huge amount in soil grows for just about any plant. Why water three times a day? Is the soil drying out that quickly? Or are you just watering when the top of the soil looks dry? Have you checked to see if the soil is dry two or three inches down before you water? How large of a container do you have these plants in, and how much water are you giving them each time?
Was just going to ask about the pot size....But I don't think the trich production is because of the roots...To clarify, the roots will effect production but not to the point where you won't see any, just not as much as a plant that's not that root bound....
I grow MK too and they don't frost up like my other strains, especially on the leaves...if you're looking at the leaves for indication, then you're really not going to see much...Now I have seen other MK grows that were just loaded...
The white hairs are new growth...During my last grow, half my MK's got a new burst of white hairs growing half way through....Still ended up chopping them on day 64 because they were done...Get yourself a scope and check the buds to see what they look like...you should still see it on the buds...
They probably dove back into veg because the light leak was probably more than you first thought...Which would also explain the hermie part...
My opinion and what I would do if I was you is cut my losses and move on...9 weeks is around the time they should be getting chopped but you look like you're at a point where you still got a long way to go....Not to let it all go to waste, cut back on the light hours by 30 minutes a day for a week, then give them 24 hours of darkness and chop em....the longer dark hours will signal to them that they're at the end of their life cycle and will kick into survival mode by trying to produce as much as they can to catch any rogue pollen they can....it'll also redden up those hairs....Just my 2 cents bro...
At the end of the day, just write this off in your experience book