First crop

I just changed the light schedule to flower from veg. For all intents and purposes, this is week 4 veg; however, the plants were stunted at the beginning and took a few weeks to get established and begin developing vegetation. The center back plant is Cream Caramel CBD and the right plant is Shark Shock, while the plant on the left is unknown. Germinating my first seeds was very challenging, and the label and plant were separated. Around week 3, I topped and/or FIMed the plants, used the net and twist ties as LST and defoliated the lower branches. QUESTION: Should I consider one last prune before flowering really begins? I’m growing in a cabinet, am concerned about height if the plants will double in size.