The only thing in your reply that means much at all to me is that you give a reason to use tools which local communities don t use or permit That s fine but you abjectly fail to give any reason why PC2 could be the best tool let alone the only tool useful in any circumstance let alone this specific one and the direct points I make about the user group concerned with its approval No response whatsoever It should surely be an easy answer since you clearly must have understood why this was the best scenario when selecting it