Not the best idea I've heard. When you will fim the secondaries you will end up with too much lateral branches and you will have to practice LST and defoliation to not let that new branches and new leaves block the light. Keep it simply by doing one FIM and continue by bending the stems 😊
Pretty much what Athos said, is true what you can do though to increase the number of colas is a technique called fluxxing where you too then fim or top multiple times. Something else you can do is fim multiple times so you get several more colas . Up to you ! Hope this helps ! 🚀
No, the idea of TOPing (or FIMing) is to promote growth of the side shoots. When they reach the SCROG net you must interweave them to create an even canopy.