Yes, you can harvest early, get very high quality weed, and reduce the hassle of fighting rot under current conditions. See:The big question I now have is about harvest. Could I get useful buds if I was to harvest some of these colas or must I wait longer? I don't think the risk of mold is extreme but perhaps I could begin an incremental harvest? Keep in mind that our needs are very small -- I'm obviously going to have far more than we can use.
I have a couple of OG Kush autos that are both at 94 days old, 56 days in flower. I'm thinking about harvesting one of them early (like, today) for the more racy, cerebral high. Then letting the other one mature to about 30% amber trichs. Here's the first one (the one I'm thinking of...
Folks that preach the "x% amber trichomes" mantra are usually just repeating what they've heard & have little experience with harvesting at different stages.
A good way to find out yourself is to harvest the largest ripest buds* now and let the rest go longer. You can then do a comparison & learn what you prefer 1st hand instead of relying on say-so.
*Harvesting the largest & ripest also helps alleviate mold problems, because those are the buds with conditions that are most prone to rot. Sadly...