I usually check the buds nearest the light....I try to go for mostly cloudy, like 70% cloudy and maybe 20% amber. Maybe 10% or less clear ones. I try to check the same bud or group of buds every day to note any changes. Generalizing is the best you can do in my opinion. You may want to try snipping a few branches here and there with different trichs on them to try to help you decide what you like best. Just remember which one is which after you have dried them---that's the part I forgot when I did it. It will also help you by letting you do a partial harvest and letting the smaller buds get some extra light while you "test" the others.

I am not liking the look of the spotting on those leaves though. My very first guess would be spider mites.....I have seen them on some of my outdoor fruit trees although never in my indoor plants. Might be a good idea to post a new thread in this forum with some photos of those leaves.....they are good photos so someone should be able to pin it down for you. Why they would only be on one plant though seems weird to me. Of course it could be something else altogether so it would be good to get other and wiser opinions. You said you have a 30x mag.....can you look at the back of the damaged leaves and see if you see anything?

I probably would remove any damaged leaves if you can but now I really am starting to be curious as to what that is. I will check back soon and see if you have been able to dig up any answers etc.

Talk to you soon.