Harvest early or not pros and cons

You will gain anywhere from 10% to another 20% dry weight if you wait a week to 10 days longer. It may not look like its doing much now but thats the point in the plants life its buds are getting denser and heavier not larger. So you dont see much happening but trust me this is where the pros get the most weight gain in final yield. Generally speaking if a website says 60-65 days of flower that is the SOONEST the buds will be ready IF the conditions were perfect the entire grow. For every mistake you made you add a few days to the final harvest time or you reduce the yield depending on the mistake.... So my advice would be to use the 65 days as the earliest day possible and if you can a bit longer to even 70 days, you wont regret it. No one ever says "I wish i didnt leave it another week longer and harvested sooner" Its always, "if id known it would lose this much wet weight id have let it go another week longer"