I will chime in here real quick.
So in my current grow i topped one plant much later than the other because it was growing slower and all i was interested in was an even canopy, i ended up manipulating height with tying regularly.
Long story short the plant that was topped later on developed 6-7 main colas that were dominant, with the rest of it being useless and underdeveloped, the other plant that was topped early has about 14 dominant main colas although not technically correct because of those 14 half of them are actually side branches of the side branches but at the same time equal in size with the other branches. Both plants from seed.... i dont know the genetics... now the plant with less main colas has much bigger colas, the plant with more colas has smaller ones, in the end however if i would put 2 of the smaller colas together it would be like one of the big ones probably a bit more so it somewhat evens out.