Looks great in your yard Joe! If you plant your nanas right on the neighbors fence line.. the pups will likely pop up on his side and you can force him into a plantation!
As far as the question about tall namwah.. I have some first year namwah that are approaching 13/14 ft of pstem, and havent flowered yet. They are close I believe, as they are crowning and the top of the pstem looks swollen. Joe, your namwah look at least that big if not larger?