Thank you!!
Not sure how Fseries plays it. And as Hotwired said its strain dependent on how far you wanna go.
You dont wanna take every single fan off the plant. Look at the pic i posted. Theres probably a good 2 to 3 bigger fans i cut off while leaving some of the other bigger fans. If you take a look at my journal you can see i dont do my defoliation all at once. i try to not stress the plant out. I concentrate on the first 3 weeks of flower but i probably do the most during weeks 2 and 3 when their nearing the end of stretch. Also I do some here and there into weeks 7 and 8 to really try and ripen up the middle and lower shelf. when it comes to a fan leaf or a bud getting light, the fan leaf is getting cut. Also you want ur growroom dialed in. If a deficiency or something unforseen pops up its nice having more fans. Gives you a little more time to solve the problem. id start with all the fans that grow inward toward the plant. that will open them up a little. Then when you start flowering and you start seeing budsites develop you can guage what leafs are going to need to come off.
jungle boys do things a bit different. The week before flowering they do a 4 node and strip. Everything under the 4th node of every branch gets cut. they do this all at once or over a period of 1 to 3 days. This stresses the plants so they dim the lights for next 5 to 7 days while they recover. Then into flowering they go.