You have generated a fantastic thread here. Thanks also to all the contributors. Some great specifics here. I do not have diabetes but I must eat carefully and take care to stay warm and dry!
I am happy you had a good trip. You are inspiring! And thank you for the photos from Japan. I too would like to hike in Japan. I hear the huts are very "strict"!
Inaki: You clearly know these mountains! I think you use the phrase "depending on pace" or similar in a few places. Do you mind if I ask...roughly, how many days would you allow for the entire HRP as described by Joosten (or whoever)?...just to put your excellent insight into perspective...3 weeks? 4 weeks? 5 weeks?