Yep, I am growing a few kinds but not nearly as long as you have. Mine (nitida) is in its 2nd season and is looking great. I think I recall yours being 6-8' or so & several feet wide. I was impressed this past winter with its hardiness. It was the only bamboo I've grown so far that has had its culms survive the winter. The leaves all fell off early in the winter (Nov) and I figured it was toasted to the ground. In spring I was pleasantly surprised. This summer I still see the poor thing suffering in the heat of summer but it still hangs on putting up new shoots. Mine is from the old generation so maybe will flower someday.

I have a few seedlings started too that are hanging in there waiting for some cooler weather. Also I recently planted a rufa but have no idea if this will survive. My one murielae is as small as a seedling after it was pruned to the ground by a rabbit last summer.