Well first off bro if you wanted short compact plants you need to search for plants that have that in they're genetic profile.
If you didn't know the OG in this cross is a very stretchy strain. It always has been and always will be. The Blueberry in this cross also has some stretch to it so that's why you have a very tall plant. The only way to control this is to top and train it to be lower.
It's great that you were able to cross it and make some nice crosses of it but if you had never run the mom truly why would you cross it not knowing the way it grows or even if it was a good mom to be crossed to. When breeding lots of time goes into choosing the male and female and it best to understand both of them before trying to cross them
The reason why your crosses are finishing before the Blue OG is because the other parent has cut the flowering time down some. This goes back to knowing how fast the parents of the cross flower and many more things to be able to get an idea of how it will do in a cross. Before making anymore crosses I suggest you run the parents and learn about them as much as possible take notes and then go from there. Hopes this helps
