Shiggs, waz goin on brotha! Yes , i give the CD later than most .Around the middle of week four....but there's more, the CD as you know is very tricky to understand and takes a bunch of crops to have it figured out. It's very strong and purposeful. Doc's instructions say " If in doubt, ...leave it out" He put that in there for a reason. I believe the absolute best time to give it , is just before the "turbo" time , ya know , when they explode with new clusters every day for about a week, really taking off, so to speak. That's when i try to time it. That's the perfect time IMO. That means you have to have some strain experience as well as experience with the Kit. I've also found over time, that CD should only be given to healthy , vigorous plants and not ones that have any issues.
With these Kosher Kush's comin up for me, i may omit the CD in favour of GE and the OG Drench. Anyhow, have an awesome night Shiggs and Gang!