Hey bro, about the harvest you may do it as you prefere, it will affect the effects on the high, as it follows:
A - 40% of hairs have darken, trichomes are half clear and half cloudy : Produces a more energetic effect, and buds tend to still growing in size.
B-50-70% of hairs darken, trichomes are milk / cloudy, you get the most intense high, with most euforia - pain relief vibe.
C- 70-90% hairs have darken, trichomes are major ambar and turning, you get more CBN less THC and a more relaxing / narcotic / couch lock high.
Basically once you feel the bud has developed to full potencial is your call based on preference.
Be aware the more they go the more you have to keep an eye to potential problems in the buds.
Good luck, cheers!
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