Stagger your harvest... take off the mature top colas and allow the rest to finish up.
sometimes logistics is a concern... if you got the time to leave them there, you an let the lower buds ripen longer.
if not, you cut it down and move on.
When you harvest takes time to learn what you prefer. Take note of:
Trichome colors,
Pisitl colors
Density of nugs
Try early-middle-late harvests over time to learn what you prefer. Using these 3 keys will keep you fairly consistent as to when you choose to harvest and how to adjust when you harvest in a meaninful way.
You don't have to cut the whole plant down at once... if the lower regions are immature, you can let those go longer, if not a pain in the ass otherwise. While it is quite stressful to the plant to remove large chunks, it takes 3-4 weeks for cell differentiation to occur and give rise to nanners and sacs... That simply won't happen due to anything in that time frame. If they do pop up, it's because of what was done 3-4 weeks ago and not the last week of life.