Migueldiaz, As for the 'humpback' feature you are referring to, I have a few examples that I will post in the mourning as it is late here and I am on my way to bed and sleep. I think all of the examples that I have with this shape are from Luzon but I will check and if there are others from any different locations I will post them as well.
My thanks to all who have commented so far on my latest addition.
Robert
P.S.
I know it looks like I am on the forum 24 hours a day but I just leave my computer on most of the time. It saves me alot of time this way.