Plants were topped to 4th node on day 16 but on day 18 I changed my mind and decided to do a sort of mainline grow. It's not a proper mainline but I cut them down to the first node branches to get two mains coming off the stem. Started to stake them out with wire but it's hard to see because the plants are so squat. The bottom left plant is a Blue Gelato so is not really part of this diary but you can see it is much lankier than the five WWxBB girls and shows the wire pins better.
@Godesskat, Thank you mate - at the risk of jinxing the grow, I'm fairly confident this will be my best ever. These plants are just so full of life, it's quite a joy to see.