I don't think he has to wait too long, this is not over yet... I would leave this for another two weeks, less, more... in two weeks it will be almost twice as full, harder and more beautiful, and not to mention the colors... it is best to give them only clean water for the next 2 weeks because the plants fill up like crazy in the last days, especially in clean water... if the trichomes bother you, look at the leaves, when the plant is mature all the leaves will be in autumn colors or at least most of them... you can also always you take a small flower when you think the plant is nearing the end, leave it for a few days to dry and you will know by yourself if it is ripe or not.
Beautiful plant bro,good job!