Actions speak louder than words - I hear what you're saying! So I've done another YouTube clip for you which briefly explains the importance of a drop checker in a planted aquarium when you are using pressurised CO2.
I recommend the AE Design Drop Checker with Bromo Blue Solution and this piece of equipment will save you so much stress, providing you hit the green target which indicates 30ppm CO2 (which is perfect!)
Are you using a drop checker? If so which type?