If unfamiliar/new, consider a staggered harvest -- this might just be a bud now or later, and take the bulk when you think it is best. But, this way you get to test early-to-late harvest window and learn what you prefer best -- 1 plant won't cover all possible outcomes, but it's a good start to learning what you like with a shorter learning curve.
still take the bulk when you want to, but take some now, leave a bud or two on to ripen longer... the window of time is small enough that any stress caused cannot have a negative ramification, like a nanner or something. Nothing bad can grow out that fast.
Check more than just top colas --- maybe you take the top colas down and let the rest ripen.. there's no set rules here. It's your plant, remember that.
trichomes, bud density and pistils (coloration along with illusion of pistil shrinking or actually curling up when they die) use all three visible characteristics to keep yourself honest and consistent.