OK lol, so I don't ML as you know. So this is my best explanation
You've set up your plant to produce all main colas of even size etc. So when to flip is down to space limitations vertical wise. That's all really lol, if you want BIG colas give her a little longer to build vertically. Taking into consideration that she will stretch some!
Then as for the new growth, these are the nodes that will build into your budsites and colas, so leave em be
I'm sure some other ML experienced person will chime in if I'm off anywhere
You've set up your plant to produce all main colas of even size etc. So when to flip is down to space limitations vertical wise. That's all really lol, if you want BIG colas give her a little longer to build vertically. Taking into consideration that she will stretch some!
Then as for the new growth, these are the nodes that will build into your budsites and colas, so leave em be
I'm sure some other ML experienced person will chime in if I'm off anywhere