I just wanted to chime in and compliment you on your journey back into growing. Your plants look good, very good. I can tell you have a very solid understanding of growing, all of your fundamentals were on point. Doesn't look like you forgot too much since the 90's. respect.Day 52 from flip, call it week 7 of flowering. Advertised flowering period is 60-75 days. By the looks of the pistil color, they are getting close. They've been 80-90% brown for a week, with pheno 2 leading the way by at least a week. I have seen no amber trichs, not even one. Trichs are 80-90% cloudy. I'm going to wait at least a week. Pheno 2 will be coming down first.
Temps are still cool and dry (70/60, 30% RH), with a large portion of the day spent in the 60s. Takes a few hours to get the temp up to 70. I don't want to spend money on heating the room, so will ride it out. Water consumption is down, from 1.5 gal/3 days to 1.5gal/5 days. Feeding full strength MC with 1/4 calmag. Not sure if I need the calmag, but added it as a precaution. Not going to try to strip chlorophyll with a flush or by stopping nutrients - I'll take care of that with the cure.
Maybe look into adding beneficial microbes on your next go-round. I took nearly a decade off and just got back into the hobby last year, having soil full of living microbes is what took my plants to the next level.