I came online to answer somebody's inbox messages asking me questions about Hattingen, as he is considering them, and thought I would update this thread. All the grafts fell out about 2 weeks after the surgery. It has now been 1.5 months so still no regrowth but my native hair is growing nicely though, although there isn't much of it.
Around the incision has suffered a bit of shock loss and also is a little inflammed at the occipital part of the incision so I am having a Skype chat with the clinic next week. I had actually forgotten what it looked liked with the grafts so went back to look at the pictures to show the guy who wanted advice and I was reminded of what I have to look forward to.