Fug, can you clarify..."As for the handle I have 2 different style and have seen one more style one is the standard wood one is made of aluminum and the other two I have seen were made of some kind of hard rubber"?
One is standard wood grip with aluminum. (It appears that the aluminum piece is all one piece that fits around 3 sides of the blade and has an insert for a handle)
Are you saying that the other had the aluminum piece with with hard rubber grips and one was all aluminum?