Finally made it above the surface of the pot (filling up pot more next time for sure), low stress training and topping is making these plants look very bushy. Continued to top again most of the plants, except for 2 of them). Also got rid of two of the small dwarf plants that didn't grow, after removing them, their root structure was clearly not established and were duds (1x BK, 1x DSD). Down to 14 plants, however added 3 more seedlings that are growing very well (2x BKH, 1x WC).
They are really starting to explode in growth now and we will continue to lst and top until switching to veg about another 4-6 weeks. Overall, the plants look excellent. The PG, WC, BKH are clearly the most successful and better genetics than BK and DSD, even though DSD is still growing very fast and tall. However, the other three are growing out more laterally and bushier in the process with lst and topping. Note: for BKH will likely veg out more in a separate veg and flower room for other 4 strains.