why are u wanting to chop so soon anyway? youve done all the hard work and went to the expense and trouble of waiting this long so why not give it a another 3 weeks at least, and even thats really not long enuff. i was going to chop mine tomorrow, that will be 7 weeks of flower and yes the colas are large and lookin real good but i saw sum pics from a guy growing the same strain as me ( the church) and the difference was bloody massive, his buds were fuller, richer looking and almost cone shaped, mines are tall and tubular( not a great word choice but you know what i mean!)the hairs were all reddish brown , his grow is two weeks further on than mine and hes goin for another two weeks, this maybe too much but i will definetly be going 9 weeks and then 3 days of total darkness. i recon 2 to 3 extra weeks will put around 25 to 40% on the yeild as well as producing a much richer and mature smoke. dont do it man it'd be a waste.