Dnamraanswered grow question 4 years ago I have used SCROG on autos before and I will tell you that they have seemed to love it. It is really good for helping the lower branches and bud sites get more air and light giving you a better yield from top to bottom, so you get less of that popcorn bud. You should do it before they start to flower that way the bud sights get a much light as possible, and because I have noticed that the older parts of the plant aren't as flexible as the newer ones, and don't really like to bend as much. It will also provide more support for the branches which is great for increasing your yield. If you are thinking about doing it I highly recommend going through with it. It has only done good things for me, and it will do good things for you as well.