At the end of this week I took the upper portion of the main stalks as cuttings and removed the 1st node growth, leaving two healthy shoots on node 2 for each plant. They'll be topped once more before going into flower with 4 tops each.
@Ghost2022, that'd be the 80 actual watts version and the 120 watts version, right? I've got a few of the latter and have been getting up to 1.5 gram per watt under them, with a familiar cultivar, using them dimmed to half strength in very small spaces (2ft height, DP60 propagation tents).
This grow (with 3ft height, yay) is actually under the 250 watts one which Growdiaries doesn't list yet, but it's pretty much two of the 120 watt CR600 in one fixture and I'm running it dimmed down to 60% so I'm actually only using 150 watts for this grow - on the previous phenotype hunt this got me just over 6 Oz (with quite a variation between 8 plants).
Hope that helps, cheers for stopping by.