Should you harvest checklist:
Are Pisitlis orange and curling? If yes then,
Check trichomes. Have the trichomes switched to cloudy? If yes, some growers recommend that 50% of the trichomes turn from cloudy to amber but I would say that depends on the effect you want. The more amber trichomes, the more couch potato type feel you will get (that indica feel). If you have less amber trichome, you will get more of a head high (the sativa type feel)