ive always went to 12/12 straight from 18/6 or even 24/0 with no problems, even my lemon haze finished in 10 weeks under 12/12, but id go straight to an 11 hour day to finish her, and add less n and more k to get those fall colors or just switch and use maxi grow in veg and 1st week of flower and maxi bloom week 2 of flower till 2 days to harvestand flush the last 2 days..i used to flush for a week or 2 and found using nutes right up to 2 days before got bigger buds without change in flavor or burn after a cure..
1,2.3 buds no matter thats a hell of a good bud size!!! i have never had a bud that big,,trim it let it dry and weigh it hole,, id love to know the weight of that beast!! id sell it, a qp 1 big bud,stem n all.lol put that bud on display,,,love it,, i wouldnt be able to bring myself to cut it up,lol.. i at one time had a top that was 2 ft long and 10 inches around at the middle i had put it in an airtight glass jar on my mantle for almost 3 years before a drunken new years eve party pushed me into breaking it up and rolling a couple cheech and chong.foot long joints...i regretted it the day after though.lol