Are the trics clear or am ber colored? How are the other fan leaves on the plant looking? Are they starting to yellow too? If the trics are amber/yellowish and the fan leaves are starting to die then i would say its ready. If the answer is no to the above questions i would wait a little longer. I have made the mistake of cutting too soon in the past and the plant wasnt as potent as it should of been. Either way she looks beautifull.