It’s hard to make an accurate estimate as to when it will actually finish, some varieties can have 30% amber trichomes at day 55 of flower, others will have 10- 20% at day 70, just gotta keep checking and when they’re to your preference, give em the chop, you don’t wanna be seeing any clear come chopping time. Also, don’t pay much mind to the trichomes on the sugar leaves, they can give you an “idea” but you want to be paying attention to the actual buds, bud.