Thanks for the information!!Correct clear is empty , cloudy is thc and cbd etc...., yellow it converts to cbn which is sleepy. Mostly milky is more energy. The jewlers loop is a pia at first but the best imo. Those microscopes are annoying imo unless I am taking trichome shots. I have both and use the jewlers loop 99% of the time. However like anything all preference, whichever YOU feel more comfortable with is the best one for YOU. Happy growing!