I dont check trichs I notice its strain dependant like they say. Some amber before chop some like autos Ive heard and had myself, just stay clear for 12wks flower. I just try to chop when the white hairs stop coming or are like only 1% left which is subjective Id say to put a number on it 12-24 which I should struggle to find.
Ive had 100% orange hairs half the time and its what I try to aim for but 12-24 per plant is my flat rate.
Like have to really get in there and look for it. Ive only grown like 7 strains my whole life, just been running clones for a while. Even they can have different chop dates highly influenced by enviorment. If its too bushy it can take 4 wks longer which I didnt bother doing.
I perpetuate them so I have a schedule. To add to the randomness even with clones, I think aingot a choppable plant a week early. Might figure out how to make that routene. I turn it all to hash so it dont bother me but the smoke was fine, even gave a few oz away.
So idk, clearly you are doing something right, its happy and finishing quick. Unless chopped too early literally like when you first asked Ive never noticed less potency or speedy or couchlock. It all feels the same to me. I think youre close.