IMO it all depends what kind of high your out for. If your looking for a upity high then earlier rather then later or if your looking for couch lock wait til there more amber and darker. Its your choice but if it were me I like a good nutral high with a mix of both so If your plants were mine I would be axing them now.
Good for you and happy smoking friend!
Cheers!!!!
Crap I missed that yes go by the trics not hairs like zem said i assumed you were talking trics!! Not hairs.
Cheers!!!!